Remove 'initializeTestEnvironment' from 'analyzer'.

pkg/analyzer/test/src/task/model_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.src.task.model_test;
 
 import 'package:analyzer/exception/exception.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/task/model.dart';
 import 'package:analyzer/task/model.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../../generated/test_support.dart';
-import '../../utils.dart';
 import 'test_support.dart';
 
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     defineReflectiveTests(AnalysisTaskTest);
     defineReflectiveTests(ResultDescriptorImplTest);
     defineReflectiveTests(SimpleResultCachingPolicyTest);
     defineReflectiveTests(TaskDescriptorImplTest);
   });
 }
 
 @reflectiveTest
 class AnalysisTaskTest extends EngineTestCase {
@@ skipping 117 matching lines @@
     AnalysisContext context = null;
     AnalysisTarget target = new TestSource();
     Map<String, dynamic> inputs = {};
     AnalysisTask createTask = descriptor.createTask(context, target, inputs);
     expect(createTask, isNotNull);
     expect(createTask.context, context);
     expect(createTask.inputs, inputs);
     expect(createTask.target, target);
   }
 }