Revert "Update packaging configs to use cosign to sign and upload signed artifact to artifact registry"

This reverts commit 6518061ee779edb0f17355e06e635ece5e103f05.

Reason for revert: This commit is causing failures in packaging mac-arm64 binaries. Context: https://ci.chromium.org/p/flutter/g/stable_packaging/console

Original change's description:
> Update packaging configs to use cosign to sign and upload signed artifact to artifact registry
>
> Bug: b/230772081
> Change-Id: I3df63ecdab95bb08ac8c5da1755e7fb7436b5dc1
> Reviewed-on: https://flutter-review.googlesource.com/c/infra/+/33740
> Reviewed-by: Casey Hillers <chillers@google.com>
> Reviewed-by: Godofredo Contreras <godofredoc@google.com>
> Commit-Queue: Drew Roen <drewroen@google.com>

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: b/230772081
Change-Id: I3b871504a854e7c20e4bd56b2d9368ab3204218e
Reviewed-on: https://flutter-review.googlesource.com/c/infra/+/33860
Reviewed-by: Drew Roen <drewroen@google.com>
Commit-Queue: Drew Roen <drewroen@google.com>
diff --git a/config/generated/flutter/luci/cr-buildbucket.cfg b/config/generated/flutter/luci/cr-buildbucket.cfg
index 6663a9f..293f488 100644
--- a/config/generated/flutter/luci/cr-buildbucket.cfg
+++ b/config/generated/flutter/luci/cr-buildbucket.cfg
@@ -803,17 +803,11 @@
         '    "server": "https://chromium-swarm.appspot.com"'
         '  },'
         '  "clobber": false,'
-        '  "dependencies": ['
-        '    {'
-        '      "dependency": "cosign"'
-        '    }'
-        '  ],'
         '  "gold_tryjob": false,'
         '  "goma_jobs": "200",'
         '  "mastername": "client.flutter",'
         '  "recipe": "packaging/packaging",'
-        '  "upload_packages": true,'
-        '  "upload_with_cosign": true'
+        '  "upload_packages": true'
         '}'
       priority: 25
       execution_timeout_secs: 3600
@@ -53361,17 +53355,11 @@
         '    "server": "https://chromium-swarm.appspot.com"'
         '  },'
         '  "clobber": false,'
-        '  "dependencies": ['
-        '    {'
-        '      "dependency": "cosign"'
-        '    }'
-        '  ],'
         '  "gold_tryjob": false,'
         '  "goma_jobs": "200",'
         '  "mastername": "client.flutter",'
         '  "recipe": "packaging/packaging",'
-        '  "upload_packages": true,'
-        '  "upload_with_cosign": true'
+        '  "upload_packages": true'
         '}'
       priority: 25
       execution_timeout_secs: 3600
@@ -53409,17 +53397,11 @@
         '    "server": "https://chromium-swarm.appspot.com"'
         '  },'
         '  "clobber": false,'
-        '  "dependencies": ['
-        '    {'
-        '      "dependency": "cosign"'
-        '    }'
-        '  ],'
         '  "gold_tryjob": false,'
         '  "goma_jobs": "200",'
         '  "mastername": "client.flutter",'
         '  "recipe": "packaging/packaging",'
-        '  "upload_packages": true,'
-        '  "upload_with_cosign": true'
+        '  "upload_packages": true'
         '}'
       priority: 25
       execution_timeout_secs: 3600
@@ -53550,17 +53532,11 @@
         '    "server": "https://chromium-swarm.appspot.com"'
         '  },'
         '  "clobber": false,'
-        '  "dependencies": ['
-        '    {'
-        '      "dependency": "cosign"'
-        '    }'
-        '  ],'
         '  "gold_tryjob": false,'
         '  "goma_jobs": "200",'
         '  "mastername": "client.flutter",'
         '  "recipe": "packaging/packaging",'
-        '  "upload_packages": true,'
-        '  "upload_with_cosign": true'
+        '  "upload_packages": true'
         '}'
       priority: 25
       execution_timeout_secs: 3600
@@ -53598,17 +53574,11 @@
         '    "server": "https://chromium-swarm.appspot.com"'
         '  },'
         '  "clobber": false,'
-        '  "dependencies": ['
-        '    {'
-        '      "dependency": "cosign"'
-        '    }'
-        '  ],'
         '  "gold_tryjob": false,'
         '  "goma_jobs": "200",'
         '  "mastername": "client.flutter",'
         '  "recipe": "packaging/packaging",'
-        '  "upload_packages": true,'
-        '  "upload_with_cosign": true'
+        '  "upload_packages": true'
         '}'
       priority: 25
       execution_timeout_secs: 3600
@@ -86850,17 +86820,11 @@
         '    "server": "https://chromium-swarm.appspot.com"'
         '  },'
         '  "clobber": false,'
-        '  "dependencies": ['
-        '    {'
-        '      "dependency": "cosign"'
-        '    }'
-        '  ],'
         '  "gold_tryjob": false,'
         '  "goma_jobs": "200",'
         '  "mastername": "client.flutter",'
         '  "recipe": "packaging/packaging",'
-        '  "upload_packages": true,'
-        '  "upload_with_cosign": true'
+        '  "upload_packages": true'
         '}'
       priority: 25
       execution_timeout_secs: 3600
@@ -86897,17 +86861,11 @@
         '    "server": "https://chromium-swarm.appspot.com"'
         '  },'
         '  "clobber": false,'
-        '  "dependencies": ['
-        '    {'
-        '      "dependency": "cosign"'
-        '    }'
-        '  ],'
         '  "gold_tryjob": false,'
         '  "goma_jobs": "200",'
         '  "mastername": "client.flutter",'
         '  "recipe": "packaging/packaging",'
-        '  "upload_packages": true,'
-        '  "upload_with_cosign": true'
+        '  "upload_packages": true'
         '}'
       priority: 25
       execution_timeout_secs: 3600
diff --git a/config/packaging_config.star b/config/packaging_config.star
index fc6ba50..69fba9f 100644
--- a/config/packaging_config.star
+++ b/config/packaging_config.star
@@ -151,29 +151,36 @@
     # never use.
     if branch in ("beta", "stable"):
         # Defines framework prod builders
-        common.linux_prod_builder(
-            name = builder_name("Linux Flutter %s Packaging|%s", branch),
-            recipe = "packaging/packaging",
-            console_view_name = console_view_name,
-            triggered_by = [trigger_name],
-            triggering_policy = triggering_policy,
-            properties = {
-                "dependencies": [{"dependency": "cosign"}],
-                "upload_with_cosign": True,
-            },
-            priority = 25,
-            **platform_args["linux"]
-        )
+        if branch == "stable":  # TODO(drewroen): Remove the branch check for linux flutter packaging when cosign is determined to work correctly
+            common.linux_prod_builder(
+                name = builder_name("Linux Flutter %s Packaging|%s", branch),
+                recipe = "packaging/packaging",
+                console_view_name = console_view_name,
+                triggered_by = [trigger_name],
+                triggering_policy = triggering_policy,
+                priority = 25,
+                **platform_args["linux"]
+            )
+        else:
+            common.linux_prod_builder(
+                name = builder_name("Linux Flutter %s Packaging|%s", branch),
+                recipe = "packaging/packaging",
+                console_view_name = console_view_name,
+                triggered_by = [trigger_name],
+                triggering_policy = triggering_policy,
+                properties = {
+                    "dependencies": [{"dependency": "cosign"}],
+                    "upload_with_cosign": True,
+                },
+                priority = 25,
+                **platform_args["linux"]
+            )
         common.mac_prod_builder(
             name = builder_name("Mac Flutter %s Packaging|%s", branch),
             recipe = "packaging/packaging",
             console_view_name = console_view_name,
             triggered_by = [trigger_name],
             triggering_policy = triggering_policy,
-            properties = {
-                "dependencies": [{"dependency": "cosign"}],
-                "upload_with_cosign": True,
-            },
             priority = 25,
             **platform_args["mac"]
         )
@@ -183,10 +190,6 @@
             console_view_name = console_view_name,
             triggered_by = [trigger_name],
             triggering_policy = triggering_policy,
-            properties = {
-                "dependencies": [{"dependency": "cosign"}],
-                "upload_with_cosign": True,
-            },
             priority = 25,
             **platform_args["mac_arm64"]
         )
@@ -196,10 +199,6 @@
             console_view_name = console_view_name,
             triggered_by = [trigger_name],
             triggering_policy = triggering_policy,
-            properties = {
-                "dependencies": [{"dependency": "cosign"}],
-                "upload_with_cosign": True,
-            },
             priority = 25,
             **platform_args["windows"]
         )