Remove unused method and field from DartSdkManager

pkg/analysis_server/test/domain_execution_test.dart

 // Copyright (c) 2014, 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.domain.execution;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/context_manager.dart';
 import 'package:analysis_server/src/domain_execution.dart';
 import 'package:analysis_server/src/plugin/server_plugin.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:plugin/manager.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:typed_mock/typed_mock.dart';
 
 import 'analysis_abstract.dart';
-import 'mock_sdk.dart';
 import 'mocks.dart';
 import 'operation/operation_queue_test.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(ExecutionDomainTest);
   });
   group('ExecutionDomainHandler', () {
     MemoryResourceProvider provider = new MemoryResourceProvider();
     AnalysisServer server;
     ExecutionDomainHandler handler;
 
     setUp(() {
       ExtensionManager manager = new ExtensionManager();
       ServerPlugin serverPlugin = new ServerPlugin();
       manager.processPlugins([serverPlugin]);
       server = new AnalysisServer(
           new MockServerChannel(),
           provider,
           new MockPackageMapProvider(),
           null,
           serverPlugin,
           new AnalysisServerOptions(),
-          new DartSdkManager('', false, (_) => new MockSdk()),
+          new DartSdkManager('', false),
           InstrumentationService.NULL_SERVICE);
       handler = new ExecutionDomainHandler(server);
     });
 
     group('createContext/deleteContext', () {
       test('create/delete multiple contexts', () {
         Request request =
             new ExecutionCreateContextParams('/a/b.dart').toRequest('0');
         Response response = handler.handleRequest(request);
         expect(response, isResponseSuccess('0'));
@@ skipping 286 matching lines @@
  * A [Source] that knows it's [fullName].
  */
 class TestSource implements Source {
   String fullName;
 
   TestSource(this.fullName);
 
   @override
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }