Issue 22157. Cancel a pending refactoring request on receiving a new one.

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 c017c636075540493d636c722fc572498a980c7a..9475cbbe24a52464077c93eed429f18fa0ca187b 100644
--- a/pkg/analysis_server/test/mocks.dart
+++ b/pkg/analysis_server/test/mocks.dart
@@ -283,9 +283,6 @@ class MockServerChannel implements ServerCommunicationChannel {
     return responseController.stream.firstWhere((response) {
       return response.id == id;
     });
-//    return responseController.stream.firstWhere((response) {
-//      return response.id == id;
-//    });
   }
 }