Goodbye "build mojo", we hardly knew ye. (#6162)

packages/flutter_tools/lib/src/commands/build.dart

diff --git a/packages/flutter_tools/lib/src/commands/build.dart b/packages/flutter_tools/lib/src/commands/build.dart
index d6b5676..ace05fd 100644
--- a/packages/flutter_tools/lib/src/commands/build.dart
+++ b/packages/flutter_tools/lib/src/commands/build.dart
@@ -15,7 +15,6 @@
 import 'build_aot.dart';
 import 'build_flx.dart';
 import 'build_ios.dart';
-import 'build_mojo.dart';
 
 class BuildCommand extends FlutterCommand {
   BuildCommand({bool verboseHelp: false}) {
@@ -24,7 +23,6 @@
     addSubcommand(new BuildCleanCommand());
     addSubcommand(new BuildIOSCommand());
     addSubcommand(new BuildFlxCommand(verboseHelp: verboseHelp));
-    addSubcommand(new BuildMojoCommand());
   }
 
   @override

packages/flutter_tools/lib/src/commands/build_mojo.dart

diff --git a/packages/flutter_tools/lib/src/commands/build_mojo.dart b/packages/flutter_tools/lib/src/commands/build_mojo.dart
deleted file mode 100644
index e1e6251..0000000
--- a/packages/flutter_tools/lib/src/commands/build_mojo.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright 2016 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.
-
-import 'dart:async';
-
-import '../flx.dart';
-import '../globals.dart';
-import 'build.dart';
-
-const String _kOptionSnapshotter = 'snapshotter-path';
-const String _kOptionTarget = 'target';
-const String _kOptionPackages = 'packages';
-const String _kOptionOutput = 'output-file';
-const String _kOptionSnapshot = 'snapshot';
-const String _kOptionDepfile = 'depfile';
-const String _kOptionWorking = 'working-dir';
-const List<String> _kOptions = const <String>[
-  _kOptionSnapshotter,
-  _kOptionTarget,
-  _kOptionPackages,
-  _kOptionOutput,
-  _kOptionSnapshot,
-  _kOptionDepfile,
-  _kOptionWorking
-];
-
-class BuildMojoCommand extends BuildSubCommand {
-  BuildMojoCommand({bool verboseHelp: false}) {
-    argParser.addOption(_kOptionSnapshotter,
-        help: 'The snapshotter executable');
-    argParser.addOption(_kOptionTarget, help: 'The entry point into the app');
-    argParser.addOption(_kOptionPackages, help: 'The .packages file');
-    argParser.addOption(_kOptionOutput, help: 'The generated flx file');
-    argParser.addOption(_kOptionSnapshot, help: 'The generated snapshot file');
-    argParser.addOption(_kOptionDepfile, help: 'The generated dependency file');
-    argParser.addOption(_kOptionWorking,
-        help: 'The directory where to put temporary files');
-    commandValidator = () => true;
-  }
-
-  @override
-  final String name = 'mojo';
-
-  @override
-  final String description = 'Build a Flutter FLX file for Mojo.';
-
-  @override
-  final String usageFooter =
-      'FLX files are archives of your application code and resources; '
-      'they are used by the Flutter content handler.';
-
-  @override
-  Future<int> runCommand() async {
-    await super.runCommand();
-    if (_kOptions
-        .any((String option) => !argResults.options.contains(option))) {
-      printError('Missing option! All options must be specified.');
-      return 1;
-    }
-    String outputPath = argResults[_kOptionOutput];
-    return await build(
-      snapshotterPath: argResults[_kOptionSnapshotter],
-      mainPath: argResults[_kOptionTarget],
-      outputPath: outputPath,
-      snapshotPath: argResults[_kOptionSnapshot],
-      depfilePath: argResults[_kOptionDepfile],
-      workingDirPath: argResults[_kOptionWorking],
-      packagesPath: argResults[_kOptionPackages],
-      includeRobotoFonts: true,
-    ).then((int result) {
-      if (result != 0) {
-        printError('Error building $outputPath: $result.');
-      }
-      return result;
-    });
-  }
-}