[dart] Account for compiler api change (flutter#19002)

Author: iskakaushik

shell/platform/fuchsia/dart/compiler.dart

@@ -14,11 +14,7 @@ import 'package:vm/kernel_front_end.dart'
 final ArgParser _argParser = createCompilerArgParser()
   ..addFlag('train',
       help: 'Run through sample command line to produce snapshot',
-      negatable: false)
-  ..addOption('component-name', help: 'Name of the component')
-  ..addOption('data-dir',
-      help: 'Name of the subdirectory of //data for output files')
-  ..addOption('manifest', help: 'Path to output Fuchsia package manifest');
+      negatable: false);
 
 String _usage = '''
 Usage: compiler [options] input.dart
@@ -29,7 +25,6 @@ ${_argParser.usage}
 
 Future<void> main(List<String> args) async {
   ArgResults options;
-
   try {
     options = _argParser.parse(args);
 
@@ -64,61 +59,4 @@ Future<void> main(List<String> args) async {
     exitCode = compilerExitCode;
     return;
   }
-
-  final String output = options['output'];
-  final String dataDir = options.options.contains('component-name')
-      ? options['component-name']
-      : options['data-dir'];
-  final String manifestFilename = options['manifest'];
-
-  if (manifestFilename != null) {
-    await createManifest(manifestFilename, dataDir, output);
-  }
-}
-
-Future createManifest(
-    String packageManifestFilename, String dataDir, String output) async {
-  List<String> packages = await File('$output-packages').readAsLines();
-
-  // Make sure the 'main' package is the last (convention with package loader).
-  packages.remove('main');
-  packages.add('main');
-
-  final IOSink packageManifest = File(packageManifestFilename).openWrite();
-
-  final String kernelListFilename = '$packageManifestFilename.dilplist';
-  final IOSink kernelList = File(kernelListFilename).openWrite();
-  for (String package in packages) {
-    final String filenameInPackage = '$package.dilp';
-    final String filenameInBuild = '$output-$package.dilp';
-    packageManifest
-        .write('data/$dataDir/$filenameInPackage=$filenameInBuild\n');
-    kernelList.write('$filenameInPackage\n');
-  }
-  await kernelList.close();
-
-  final String frameworkVersionFilename =
-      '$packageManifestFilename.frameworkversion';
-  final IOSink frameworkVersion = File(frameworkVersionFilename).openWrite();
-  for (String package in [
-    'collection',
-    'flutter',
-    'meta',
-    'typed_data',
-    'vector_math'
-  ]) {
-    Digest digest;
-    if (packages.contains(package)) {
-      final filenameInBuild = '$output-$package.dilp';
-      final bytes = await File(filenameInBuild).readAsBytes();
-      digest = sha256.convert(bytes);
-    }
-    frameworkVersion.write('$package=$digest\n');
-  }
-  await frameworkVersion.close();
-
-  packageManifest.write('data/$dataDir/app.dilplist=$kernelListFilename\n');
-  packageManifest
-      .write('data/$dataDir/app.frameworkversion=$frameworkVersionFilename\n');
-  await packageManifest.close();
 }