Remove the unused operations queue

pkg/analysis_server/test/mocks.dart

Index: pkg/analysis_server/test/mocks.dart
diff --git a/pkg/analysis_server/test/mocks.dart b/pkg/analysis_server/test/mocks.dart
index 252123e1866191d82a2e3a1f86648646e6a6a195..8d0b290224d80104f1159570d0de4a61575c4120 100644
--- a/pkg/analysis_server/test/mocks.dart
+++ b/pkg/analysis_server/test/mocks.dart
@@ -9,8 +9,6 @@ import 'package:analysis_server/protocol/protocol.dart';
 import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/channel/channel.dart';
-import 'package:analysis_server/src/operation/operation.dart';
-import 'package:analysis_server/src/operation/operation_analysis.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/file_system/file_system.dart' as resource;
 import 'package:analyzer/file_system/memory_file_system.dart' as resource;
@@ -253,25 +251,6 @@ class MockServerChannel implements ServerCommunicationChannel {
 }
 
 /**
- * A mock [ServerOperation] for testing [AnalysisServer].
- */
-class MockServerOperation implements PerformAnalysisOperation {
-  final ServerOperationPriority priority;
-  final MockServerOperationPerformFunction _perform;
-
-  MockServerOperation(this.priority, this._perform);
-
-  @override
-  AnalysisContext get context => null;
-
-  @override
-  bool get isContinue => false;
-
-  @override
-  void perform(AnalysisServer server) => this._perform(server);
-}
-
-/**
  * A mock [WebSocket] for testing.
  */
 class MockSocket<T> implements WebSocket {