Remove 'initializeTestEnvironment' from 'analysis_server'.

pkg/analysis_server/test/services/dependencies/library_dependencies_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 test.services.dependencies.library;
 
 import 'package:analysis_server/src/services/dependencies/library_dependencies.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../../abstract_context.dart';
-import '../../utils.dart';
 
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     defineReflectiveTests(LibraryDependenciesTest);
   });
 }
 
 @reflectiveTest
 class LibraryDependenciesTest extends AbstractContextTest {
   test_LibraryDependencies() {
     addSource('/lib1.dart', 'import "lib2.dart";');
     addSource('/lib2.dart', 'import "lib1.dart";');
@@ skipping 20 matching lines @@
   }
 
   test_PackageMaps() {
     //TODO(pquitslund): add test
   }
 
   void _performAnalysis() {
     while (context.performAnalysisTask().hasMoreWork);
   }
 }