Remove 'initializeTestEnvironment' from 'analyzer'.

pkg/analyzer/test/context/declared_variables_test.dart

 // Copyright (c) 2016, 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.context.declared_variables_test;
 
 import 'package:analyzer/context/declared_variables.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/generated/constant.dart';
 import 'package:analyzer/src/generated/testing/test_type_provider.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../generated/test_support.dart';
-import '../utils.dart';
 
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     defineReflectiveTests(DeclaredVariablesTest);
   });
 }
 
 @reflectiveTest
 class DeclaredVariablesTest extends EngineTestCase {
   void test_getBool_false() {
     TestTypeProvider typeProvider = new TestTypeProvider();
     String variableName = "var";
@@ skipping 80 matching lines @@
   void _assertNullDartObject(TestTypeProvider typeProvider, DartObject result) {
     expect(result.type, typeProvider.nullType);
   }
 
   void _assertUnknownDartObject(
       ParameterizedType expectedType, DartObject result) {
     expect((result as DartObjectImpl).isUnknown, isTrue);
     expect(result.type, expectedType);
   }
 }