Remove unused recipes and modules.

Some recipes and modules are not used anymore. This CL is removing them.

Change-Id: I8ca94563e508b3d08b78141e7ed30cd543fec684
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/36861
Commit-Queue: Godofredo Contreras <godofredoc@google.com>
Reviewed-by: Yusuf Mohsinally <mohsinally@google.com>
diff --git a/recipes/engine/release_builder.expected/basic_linux.json b/recipes/engine/release_builder.expected/basic_linux.json
deleted file mode 100644
index 26709ed..0000000
--- a/recipes/engine/release_builder.expected/basic_linux.json
+++ /dev/null
@@ -1,534 +0,0 @@
-[
-  {
-    "cmd": [],
-    "name": "Checkout flutter/mirrors/engine"
-  },
-  {
-    "cmd": [
-      "python3",
-      "-u",
-      "RECIPE_MODULE[depot_tools::git]/resources/git_setup.py",
-      "--path",
-      "[START_DIR]/mirrors/engine",
-      "--url",
-      "https://flutter.googlesource.com/mirrors/engine"
-    ],
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "Checkout flutter/mirrors/engine.git setup",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "git",
-      "fetch",
-      "origin",
-      "main",
-      "--recurse-submodules",
-      "--progress",
-      "--tags"
-    ],
-    "cwd": "[START_DIR]/mirrors/engine",
-    "env": {
-      "PATH": "RECIPE_REPO[depot_tools]:<PATH>"
-    },
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "Checkout flutter/mirrors/engine.git fetch",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "git",
-      "checkout",
-      "-f",
-      "FETCH_HEAD"
-    ],
-    "cwd": "[START_DIR]/mirrors/engine",
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "Checkout flutter/mirrors/engine.git checkout",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "git",
-      "rev-parse",
-      "HEAD"
-    ],
-    "cwd": "[START_DIR]/mirrors/engine",
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "Checkout flutter/mirrors/engine.read revision",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_TEXT@<br/>checked out 'deadbeef'<br/>@@@",
-      "@@@SET_BUILD_PROPERTY@got_revision@\"deadbeef\"@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "git",
-      "clean",
-      "-f",
-      "-d",
-      "-x"
-    ],
-    "cwd": "[START_DIR]/mirrors/engine",
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "Checkout flutter/mirrors/engine.git clean",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "git",
-      "submodule",
-      "sync"
-    ],
-    "cwd": "[START_DIR]/mirrors/engine",
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "Checkout flutter/mirrors/engine.submodule sync",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "git",
-      "submodule",
-      "update",
-      "--init",
-      "--recursive"
-    ],
-    "cwd": "[START_DIR]/mirrors/engine",
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "Checkout flutter/mirrors/engine.submodule update",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "read ci yaml",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@yaml@@@@",
-      "@@@STEP_LOG_END@yaml@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython3",
-      "-u",
-      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
-      "--json-output",
-      "/path/to/tmp/json",
-      "copy",
-      "[START_DIR]/mirrors/engine/.ci.yaml",
-      "/path/to/tmp/"
-    ],
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "read ci yaml.read",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_END@.ci.yaml@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "vpython",
-      "RECIPE_MODULE[flutter::yaml]/resources/parse_yaml.py",
-      "--yaml_file",
-      "[START_DIR]/mirrors/engine/.ci.yaml",
-      "--json_file",
-      "/path/to/tmp/json"
-    ],
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "read ci yaml.parse",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"targets\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"name\": \"linux one\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"properties\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"$flutter/osx_sdk\": \"{\\\"sdk_version\\\": \\\"14a5294e\\\"}\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"release_build\": true@@@",
-      "@@@STEP_LOG_LINE@json.output@      }, @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"recipe\": \"engine/something\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  ]@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "launch builds"
-  },
-  {
-    "cmd": [
-      "bb",
-      "batch",
-      "-host",
-      "cr-buildbucket.appspot.com"
-    ],
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "launch builds.schedule",
-    "stdin": "{\"requests\": [{\"scheduleBuild\": {\"builder\": {\"bucket\": \"try\", \"builder\": \"Linux Engine Drone\", \"project\": \"proj\"}, \"exe\": {\"cipdVersion\": \"refs/heads/main\"}, \"experimental\": \"NO\", \"experiments\": {\"luci.buildbucket.parent_tracking\": false}, \"fields\": \"builder,createTime,createdBy,critical,endTime,id,infra,input,number,output,startTime,status,updateTime\", \"gerritChanges\": [{\"change\": \"123456\", \"host\": \"flutter-review.googlesource.com\", \"patchset\": \"7\", \"project\": \"mirrors/engine\"}], \"gitilesCommit\": {\"host\": \"flutter.googlesource.com\", \"id\": \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\", \"project\": \"mirrors/engine\", \"ref\": \"refs/heads/main\"}, \"priority\": 25, \"properties\": {\"$flutter/osx_sdk\": {\"sdk_version\": \"14a5294e\"}, \"build\": {\"name\": \"linux one\", \"properties\": {\"$flutter/osx_sdk\": {\"sdk_version\": \"14a5294e\"}}, \"recipe\": \"engine/something\"}, \"environment\": \"Staging\", \"recipe\": \"engine/something\", \"repository\": \"engine\"}, \"requestId\": \"8945511751514863184-00000000-0000-0000-0000-000000001337\", \"swarming\": {\"parentRunId\": \"fake-task-id\"}, \"tags\": [{\"key\": \"cq_experimental\", \"value\": \"false\"}, {\"key\": \"parent_buildbucket_id\", \"value\": \"8945511751514863184\"}, {\"key\": \"user_agent\", \"value\": \"recipe\"}]}}]}",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"responses\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"scheduleBuild\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"builder\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"bucket\": \"try\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"builder\": \"builder-subbuild1\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"project\": \"fuchsia\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"id\": \"8945511751514863186\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  ]@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LOG_LINE@request@{@@@",
-      "@@@STEP_LOG_LINE@request@  \"requests\": [@@@",
-      "@@@STEP_LOG_LINE@request@    {@@@",
-      "@@@STEP_LOG_LINE@request@      \"scheduleBuild\": {@@@",
-      "@@@STEP_LOG_LINE@request@        \"builder\": {@@@",
-      "@@@STEP_LOG_LINE@request@          \"bucket\": \"try\", @@@",
-      "@@@STEP_LOG_LINE@request@          \"builder\": \"Linux Engine Drone\", @@@",
-      "@@@STEP_LOG_LINE@request@          \"project\": \"proj\"@@@",
-      "@@@STEP_LOG_LINE@request@        }, @@@",
-      "@@@STEP_LOG_LINE@request@        \"exe\": {@@@",
-      "@@@STEP_LOG_LINE@request@          \"cipdVersion\": \"refs/heads/main\"@@@",
-      "@@@STEP_LOG_LINE@request@        }, @@@",
-      "@@@STEP_LOG_LINE@request@        \"experimental\": \"NO\", @@@",
-      "@@@STEP_LOG_LINE@request@        \"experiments\": {@@@",
-      "@@@STEP_LOG_LINE@request@          \"luci.buildbucket.parent_tracking\": false@@@",
-      "@@@STEP_LOG_LINE@request@        }, @@@",
-      "@@@STEP_LOG_LINE@request@        \"fields\": \"builder,createTime,createdBy,critical,endTime,id,infra,input,number,output,startTime,status,updateTime\", @@@",
-      "@@@STEP_LOG_LINE@request@        \"gerritChanges\": [@@@",
-      "@@@STEP_LOG_LINE@request@          {@@@",
-      "@@@STEP_LOG_LINE@request@            \"change\": \"123456\", @@@",
-      "@@@STEP_LOG_LINE@request@            \"host\": \"flutter-review.googlesource.com\", @@@",
-      "@@@STEP_LOG_LINE@request@            \"patchset\": \"7\", @@@",
-      "@@@STEP_LOG_LINE@request@            \"project\": \"mirrors/engine\"@@@",
-      "@@@STEP_LOG_LINE@request@          }@@@",
-      "@@@STEP_LOG_LINE@request@        ], @@@",
-      "@@@STEP_LOG_LINE@request@        \"gitilesCommit\": {@@@",
-      "@@@STEP_LOG_LINE@request@          \"host\": \"flutter.googlesource.com\", @@@",
-      "@@@STEP_LOG_LINE@request@          \"id\": \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\", @@@",
-      "@@@STEP_LOG_LINE@request@          \"project\": \"mirrors/engine\", @@@",
-      "@@@STEP_LOG_LINE@request@          \"ref\": \"refs/heads/main\"@@@",
-      "@@@STEP_LOG_LINE@request@        }, @@@",
-      "@@@STEP_LOG_LINE@request@        \"priority\": 25, @@@",
-      "@@@STEP_LOG_LINE@request@        \"properties\": {@@@",
-      "@@@STEP_LOG_LINE@request@          \"$flutter/osx_sdk\": {@@@",
-      "@@@STEP_LOG_LINE@request@            \"sdk_version\": \"14a5294e\"@@@",
-      "@@@STEP_LOG_LINE@request@          }, @@@",
-      "@@@STEP_LOG_LINE@request@          \"build\": {@@@",
-      "@@@STEP_LOG_LINE@request@            \"name\": \"linux one\", @@@",
-      "@@@STEP_LOG_LINE@request@            \"properties\": {@@@",
-      "@@@STEP_LOG_LINE@request@              \"$flutter/osx_sdk\": {@@@",
-      "@@@STEP_LOG_LINE@request@                \"sdk_version\": \"14a5294e\"@@@",
-      "@@@STEP_LOG_LINE@request@              }@@@",
-      "@@@STEP_LOG_LINE@request@            }, @@@",
-      "@@@STEP_LOG_LINE@request@            \"recipe\": \"engine/something\"@@@",
-      "@@@STEP_LOG_LINE@request@          }, @@@",
-      "@@@STEP_LOG_LINE@request@          \"environment\": \"Staging\", @@@",
-      "@@@STEP_LOG_LINE@request@          \"recipe\": \"engine/something\", @@@",
-      "@@@STEP_LOG_LINE@request@          \"repository\": \"engine\"@@@",
-      "@@@STEP_LOG_LINE@request@        }, @@@",
-      "@@@STEP_LOG_LINE@request@        \"requestId\": \"8945511751514863184-00000000-0000-0000-0000-000000001337\", @@@",
-      "@@@STEP_LOG_LINE@request@        \"swarming\": {@@@",
-      "@@@STEP_LOG_LINE@request@          \"parentRunId\": \"fake-task-id\"@@@",
-      "@@@STEP_LOG_LINE@request@        }, @@@",
-      "@@@STEP_LOG_LINE@request@        \"tags\": [@@@",
-      "@@@STEP_LOG_LINE@request@          {@@@",
-      "@@@STEP_LOG_LINE@request@            \"key\": \"cq_experimental\", @@@",
-      "@@@STEP_LOG_LINE@request@            \"value\": \"false\"@@@",
-      "@@@STEP_LOG_LINE@request@          }, @@@",
-      "@@@STEP_LOG_LINE@request@          {@@@",
-      "@@@STEP_LOG_LINE@request@            \"key\": \"parent_buildbucket_id\", @@@",
-      "@@@STEP_LOG_LINE@request@            \"value\": \"8945511751514863184\"@@@",
-      "@@@STEP_LOG_LINE@request@          }, @@@",
-      "@@@STEP_LOG_LINE@request@          {@@@",
-      "@@@STEP_LOG_LINE@request@            \"key\": \"user_agent\", @@@",
-      "@@@STEP_LOG_LINE@request@            \"value\": \"recipe\"@@@",
-      "@@@STEP_LOG_LINE@request@          }@@@",
-      "@@@STEP_LOG_LINE@request@        ]@@@",
-      "@@@STEP_LOG_LINE@request@      }@@@",
-      "@@@STEP_LOG_LINE@request@    }@@@",
-      "@@@STEP_LOG_LINE@request@  ]@@@",
-      "@@@STEP_LOG_LINE@request@}@@@",
-      "@@@STEP_LOG_END@request@@@",
-      "@@@STEP_LINK@8945511751514863186@https://cr-buildbucket.appspot.com/build/8945511751514863186@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "collect builds"
-  },
-  {
-    "cmd": [],
-    "name": "collect builds.collect",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "bb",
-      "collect",
-      "-host",
-      "cr-buildbucket.appspot.com",
-      "-interval",
-      "20s",
-      "8945511751514863186"
-    ],
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "collect builds.collect.wait",
-    "timeout": 86400,
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@2@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "bb",
-      "batch",
-      "-host",
-      "cr-buildbucket.appspot.com"
-    ],
-    "infra_step": true,
-    "luci_context": {
-      "realm": {
-        "name": "proj:try"
-      },
-      "resultdb": {
-        "current_invocation": {
-          "name": "invocations/build:8945511751514863184",
-          "update_token": "token"
-        },
-        "hostname": "rdbhost"
-      }
-    },
-    "name": "collect builds.collect.get",
-    "stdin": "{\"requests\": [{\"getBuild\": {\"fields\": \"builder,createTime,createdBy,critical,endTime,id,infra,infra.swarming.taskId,input,number,output,startTime,status,summaryMarkdown,updateTime\", \"id\": \"8945511751514863186\"}}]}",
-    "~followup_annotations": [
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-      "@@@STEP_LOG_LINE@json.output@  \"responses\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@    {@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"getBuild\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"builder\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"bucket\": \"try\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"builder\": \"builder-subbuild1\", @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"project\": \"fuchsia\"@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"createTime\": \"2018-05-25T23:50:17Z\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"createdBy\": \"project:fuchsia\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"id\": \"8945511751514863186\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"infra\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"resultdb\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"invocation\": \"invocations/build:8945511751514863186\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          }, @@@",
-      "@@@STEP_LOG_LINE@json.output@          \"swarming\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"priority\": 30, @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"taskId\": \"abc123\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          }@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"input\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"gerritChanges\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@            {@@@",
-      "@@@STEP_LOG_LINE@json.output@              \"change\": \"123456\", @@@",
-      "@@@STEP_LOG_LINE@json.output@              \"host\": \"chromium-review.googlesource.com\", @@@",
-      "@@@STEP_LOG_LINE@json.output@              \"patchset\": \"7\", @@@",
-      "@@@STEP_LOG_LINE@json.output@              \"project\": \"fuchsia\"@@@",
-      "@@@STEP_LOG_LINE@json.output@            }@@@",
-      "@@@STEP_LOG_LINE@json.output@          ]@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"output\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@          \"properties\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"test_orchestration_inputs_hash\": \"abc\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          }@@@",
-      "@@@STEP_LOG_LINE@json.output@        }, @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"status\": \"SUCCESS\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"tags\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@          {@@@",
-      "@@@STEP_LOG_LINE@json.output@            \"key\": \"cq_experimental\", @@@",
-      "@@@STEP_LOG_LINE@json.output@            \"value\": \"false\"@@@",
-      "@@@STEP_LOG_LINE@json.output@          }@@@",
-      "@@@STEP_LOG_LINE@json.output@        ]@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    }@@@",
-      "@@@STEP_LOG_LINE@json.output@  ]@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@",
-      "@@@STEP_LOG_LINE@request@{@@@",
-      "@@@STEP_LOG_LINE@request@  \"requests\": [@@@",
-      "@@@STEP_LOG_LINE@request@    {@@@",
-      "@@@STEP_LOG_LINE@request@      \"getBuild\": {@@@",
-      "@@@STEP_LOG_LINE@request@        \"fields\": \"builder,createTime,createdBy,critical,endTime,id,infra,infra.swarming.taskId,input,number,output,startTime,status,summaryMarkdown,updateTime\", @@@",
-      "@@@STEP_LOG_LINE@request@        \"id\": \"8945511751514863186\"@@@",
-      "@@@STEP_LOG_LINE@request@      }@@@",
-      "@@@STEP_LOG_LINE@request@    }@@@",
-      "@@@STEP_LOG_LINE@request@  ]@@@",
-      "@@@STEP_LOG_LINE@request@}@@@",
-      "@@@STEP_LOG_END@request@@@",
-      "@@@STEP_LINK@8945511751514863186@https://cr-buildbucket.appspot.com/build/8945511751514863186@@@"
-    ]
-  },
-  {
-    "cmd": [],
-    "name": "display builds"
-  },
-  {
-    "cmd": [],
-    "name": "display builds.linux one",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LINK@8945511751514863186@https://cr-buildbucket.appspot.com/build/8945511751514863186@@@"
-    ]
-  },
-  {
-    "name": "$result"
-  }
-]
\ No newline at end of file
diff --git a/recipes/engine/release_builder.py b/recipes/engine/release_builder.py
deleted file mode 100644
index 5686e25..0000000
--- a/recipes/engine/release_builder.py
+++ /dev/null
@@ -1,107 +0,0 @@
-# Copyright 2022 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Orchestrator recipe that runs subbuilds required to release engine.
-#
-# This recipe reads <engine_checkout>/.ci_yaml, and for every target
-# marked with release_build: true, and spawens a subbuild.
-
-
-import json
-from contextlib import contextmanager
-
-from PB.recipes.flutter.engine.engine import InputProperties
-from PB.recipes.flutter.engine.engine import EnvProperties
-
-from RECIPE_MODULES.flutter.repo_util.api import REPOS
-
-from google.protobuf import struct_pb2
-
-DEPS = [
-  'flutter/yaml',
-  'flutter/display_util',
-  'flutter/repo_util',
-  'flutter/shard_util_v2',
-  'recipe_engine/buildbucket',
-  'recipe_engine/json',
-  'recipe_engine/path',
-  'recipe_engine/platform',
-  'recipe_engine/properties',
-  'recipe_engine/step',
-]
-
-GIT_REPO = \
-  'https://flutter.googlesource.com/mirrors/engine'
-
-
-PROPERTIES = InputProperties
-ENV_PROPERTIES = EnvProperties
-
-
-def RunSteps(api, properties, env_properties):
-  repository = api.buildbucket.gitiles_commit.project
-  checkout_path = api.path['start_dir'].join(repository)
-  git_ref = api.properties.get('git_ref') or api.buildbucket.gitiles_commit.ref
-  git_url = api.properties.get('git_url') or REPOS[repository]
-  api.repo_util.checkout(
-    repository,
-    checkout_path=checkout_path,
-    url=git_url,
-    ref=git_ref
-  )
-
-  ci_yaml_path = checkout_path.join('.ci.yaml')
-  ci_yaml = api.yaml.read('read ci yaml', ci_yaml_path, api.json.output())
-
-  # Foreach target defined in .ci.yaml, if it contains
-  # release_build: True, then spawn a subbuild.
-  tasks = {}
-  build_results = []
-  with api.step.nest('launch builds') as presentation:
-    for target in ci_yaml.json.output['targets']:
-      if target.get("properties", {}).get("release_build", False) and (
-          target["name"].lower().startswith(api.platform.name)):
-        target = api.shard_util_v2.pre_process_properties(target)
-        tasks.update(api.shard_util_v2.schedule(
-          [target, ], target["recipe"], presentation))
-  with api.step.nest('collect builds') as presentation:
-    build_results = api.shard_util_v2.collect(tasks, presentation)
-
-  api.display_util.display_subbuilds(
-    step_name='display builds',
-    subbuilds=build_results,
-    raise_on_failure=True,
-  )
-
-
-def GenTests(api):
-  try_subbuild1 = api.shard_util_v2.try_build_message(
-    build_id=8945511751514863186,
-    builder="builder-subbuild1",
-    output_props={"test_orchestration_inputs_hash": "abc"},
-    status="SUCCESS",
-  )
-  tasks_dict = {'targets': [
-    {'name': 'linux one', 'recipe': 'engine/something',
-     'properties': {'release_build': True, '$flutter/osx_sdk': '{"sdk_version": "14a5294e"}'}
-    }]
-  }
-  yield api.test(
-    'basic_linux',
-    api.platform.name('linux'),
-    api.properties(environment='Staging', repository='engine'),
-    api.buildbucket.try_build(
-      project='proj',
-      builder='try-builder',
-      git_repo='https://flutter.googlesource.com/mirrors/engine',
-      revision='a' * 40,
-      build_number=123,
-    ),
-    api.shard_util_v2.child_build_steps(
-      subbuilds=[try_subbuild1],
-      launch_step="launch builds",
-      collect_step="collect builds",
-    ),
-    api.step_data('read ci yaml.parse', api.json.output(tasks_dict))
-  )