Remove 'initializeTestEnvironment' from 'analyzer'.

pkg/analyzer/test/generated/source_factory_test.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer.test.generated.test.generated.source_factory;
 
 import 'dart:convert';
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/source/package_map_resolver.dart';
 import 'package:analyzer/src/generated/engine.dart' show AnalysisEngine, Logger;
 import 'package:analyzer/src/generated/java_engine_io.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart' as utils;
 import 'package:analyzer/src/source/source_resource.dart';
 import 'package:package_config/packages.dart';
 import 'package:package_config/packages_file.dart' as pkgfile show parse;
 import 'package:package_config/src/packages_impl.dart';
 import 'package:path/path.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import '../utils.dart';
 import 'test_support.dart';
 
 main() {
-  initializeTestEnvironment();
   runPackageMapTests();
   defineReflectiveSuite(() {
     defineReflectiveTests(SourceFactoryTest);
   });
 }
 
 Source createSource({String path, String uri}) =>
     //TODO(pquitslund): find some way to pass an actual URI into source creation
     new MemoryResourceProvider()
         .getFile(path)
@@ skipping 321 matching lines @@
   UriResolver_SourceFactoryTest_test_fromEncoding_valid(this.encoding);
 
   @override
   Source resolveAbsolute(Uri uri, [Uri actualUri]) {
     if (uri.toString() == encoding) {
       return new TestSource();
     }
     return null;
   }
 }