Remove old instrumentation

pkg/analysis_server/test/services/index/store/mocks.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.services.index.store.mocks;
 
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/index/store/codec.dart';
-import 'package:analyzer/src/generated/engine.dart';
 import 'package:typed_mock/typed_mock.dart';
 
 
 class MockContextCodec extends TypedMock implements ContextCodec {
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }
 
 
 class MockElementCodec extends TypedMock implements ElementCodec {
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }
 
 
-class MockInstrumentedAnalysisContextImpl extends TypedMock implements
-    InstrumentedAnalysisContextImpl {
-  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
-}
-
-
 class MockLocation extends TypedMock implements Location {
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }
 
 
 class MockRelationshipCodec extends TypedMock implements RelationshipCodec {
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }