Remove various roboto font logic (#8350)

packages/flutter_tools/gradle/flutter.gradle

@@ -329,7 +329,6 @@ class FlutterTask extends DefaultTask {
                 args "--kernel", kernelFile.absolutePath
             }
             args "--output-file", "${intermediateDir}/app.flx"
-            args "--no-include-roboto-fonts"
             if (buildMode != "debug") {
                 args "--precompiled"
             } else {

packages/flutter_tools/lib/src/asset.dart

@@ -23,7 +23,6 @@ class AssetBundle {
   static const String _kAssetManifestJson = 'AssetManifest.json';
   static const String _kFontManifestJson = 'FontManifest.json';
   static const String _kFontSetMaterial = 'material';
-  static const String _kFontSetRoboto = 'roboto';
   static const String _kLICENSE = 'LICENSE';
 
   bool _fixed = false;
@@ -69,7 +68,6 @@ class AssetBundle {
     String workingDirPath,
     String packagesPath,
     bool includeDefaultFonts: true,
-    bool includeRobotoFonts: true,
     bool reportLicensedPackages: false
   }) async {
     workingDirPath ??= getAssetBuildDirectory();
@@ -126,8 +124,6 @@ class AssetBundle {
     final List<_Asset> materialAssets = <_Asset>[];
     if (usesMaterialDesign && includeDefaultFonts) {
       materialAssets.addAll(_getMaterialAssets(_kFontSetMaterial));
-      if (includeRobotoFonts)
-        materialAssets.addAll(_getMaterialAssets(_kFontSetRoboto));
     }
     for (_Asset asset in materialAssets) {
       assert(asset.assetFileExists);
@@ -137,7 +133,7 @@ class AssetBundle {
     entries[_kAssetManifestJson] = _createAssetManifest(assetVariants);
 
     final DevFSContent fontManifest =
-        _createFontManifest(manifestDescriptor, usesMaterialDesign, includeDefaultFonts, includeRobotoFonts);
+        _createFontManifest(manifestDescriptor, usesMaterialDesign, includeDefaultFonts);
     if (fontManifest != null)
       entries[_kFontManifestJson] = fontManifest;
 
@@ -305,13 +301,10 @@ DevFSContent _createAssetManifest(Map<_Asset, List<_Asset>> assetVariants) {
 
 DevFSContent _createFontManifest(Map<String, dynamic> manifestDescriptor,
                              bool usesMaterialDesign,
-                             bool includeDefaultFonts,
-                             bool includeRobotoFonts) {
+                             bool includeDefaultFonts) {
   final List<Map<String, dynamic>> fonts = <Map<String, dynamic>>[];
   if (usesMaterialDesign && includeDefaultFonts) {
     fonts.addAll(_getMaterialFonts(AssetBundle._kFontSetMaterial));
-    if (includeRobotoFonts)
-      fonts.addAll(_getMaterialFonts(AssetBundle._kFontSetRoboto));
   }
   if (manifestDescriptor != null && manifestDescriptor.containsKey('fonts'))
     fonts.addAll(manifestDescriptor['fonts']);

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

@@ -22,7 +22,6 @@ class BuildFlxCommand extends BuildSubCommand {
     argParser.addOption('depfile', defaultsTo: defaultDepfilePath);
     argParser.addOption('kernel');
     argParser.addOption('working-dir', defaultsTo: getAssetBuildDirectory());
-    argParser.addFlag('include-roboto-fonts', defaultsTo: true);
     argParser.addFlag('report-licensed-packages', help: 'Whether to report the names of all the packages that are included in the application\'s LICENSE file.', defaultsTo: false);
     usesPubOption();
   }
@@ -52,7 +51,6 @@ class BuildFlxCommand extends BuildSubCommand {
       workingDirPath: argResults['working-dir'],
       kernelPath: argResults['kernel'],
       precompiledSnapshot: argResults['precompiled'],
-      includeRobotoFonts: argResults['include-roboto-fonts'],
       reportLicensedPackages: argResults['report-licensed-packages']
     );
   }

packages/flutter_tools/lib/src/flx.dart

@@ -66,7 +66,6 @@ Future<Null> build({
   String packagesPath,
   String kernelPath,
   bool precompiledSnapshot: false,
-  bool includeRobotoFonts: true,
   bool reportLicensedPackages: false
 }) async {
   outputPath ??= defaultFlxOutputPath;
@@ -105,7 +104,6 @@ Future<Null> build({
     privateKeyPath: privateKeyPath,
     workingDirPath: workingDirPath,
     packagesPath: packagesPath,
-    includeRobotoFonts: includeRobotoFonts,
     reportLicensedPackages: reportLicensedPackages
   ).then((_) => null);
 }
@@ -119,7 +117,6 @@ Future<List<String>> assemble({
   String workingDirPath,
   String packagesPath,
   bool includeDefaultFonts: true,
-  bool includeRobotoFonts: true,
   bool reportLicensedPackages: false
 }) async {
   outputPath ??= defaultFlxOutputPath;
@@ -134,7 +131,6 @@ Future<List<String>> assemble({
     workingDirPath: workingDirPath,
     packagesPath: packagesPath,
     includeDefaultFonts: includeDefaultFonts,
-    includeRobotoFonts: includeRobotoFonts,
     reportLicensedPackages: reportLicensedPackages
   );
   if (result != 0)