Remove the old index.

pkg/analysis_server/test/analysis/update_content_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.
 
 import 'package:analysis_server/protocol/protocol.dart';
 import 'package:analysis_server/protocol/protocol_constants.dart';
 import 'package:analysis_server/protocol/protocol_generated.dart';
-import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_resolution_map.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer_plugin/protocol/protocol_common.dart' as plugin;
 import 'package:analyzer_plugin/protocol/protocol_common.dart';
 import 'package:analyzer_plugin/protocol/protocol_generated.dart' as plugin;
 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';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(UpdateContentTest);
   });
 }
 
 compilationUnitMatcher(String file) {
   return new _ArgumentMatcher_CompilationUnit(file);
 }
 
 @reflectiveTest
 class UpdateContentTest extends AbstractAnalysisTest {
   Map<String, List<String>> filesErrors = {};
   int serverErrorCount = 0;
   int navigationCount = 0;
 
-  Index createIndex() {
-    return new _MockIndex();
-  }
-
   @override
   void processNotification(Notification notification) {
     if (notification.event == ANALYSIS_NOTIFICATION_ERRORS) {
       var decoded = new AnalysisErrorsParams.fromNotification(notification);
       String _format(AnalysisError e) =>
           "${e.location.startLine}: ${e.message}";
       filesErrors[decoded.file] = decoded.errors.map(_format).toList();
     }
     if (notification.event == ANALYSIS_NOTIFICATION_NAVIGATION) {
       navigationCount++;
@@ skipping 256 matching lines @@
 
   _ArgumentMatcher_CompilationUnit(this.file);
 
   @override
   bool matches(arg) {
     return arg is CompilationUnit &&
         resolutionMap.elementDeclaredByCompilationUnit(arg).source.fullName ==
             file;
   }
 }
-
-class _MockIndex extends TypedMock implements Index {}