Remove unnecessary 'noSuchMethod' declarations.

pkg/analyzer/test/generated/engine_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 analyzer.test.generated.engine_test;
 
 import 'dart:async';
 
 import 'package:analyzer/source/embedder.dart';
 import 'package:analyzer/src/context/cache.dart';
@@ skipping 54 matching lines @@
   void onData(ImplicitAnalysisEvent event) {
     actualEvents.add(event);
     if (event.isAnalyzed) {
       analyzedSources.add(event.source);
     } else {
       analyzedSources.remove(event.source);
     }
   }
 }
 
-class CompilationUnitMock extends TypedMock implements CompilationUnit {
-  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
-}
+class CompilationUnitMock extends TypedMock implements CompilationUnit {}
 
 class MockSourceFactory extends SourceFactory {
   MockSourceFactory() : super([]);
   Source resolveUri(Source containingSource, String containedUri) {
     throw new JavaIOException();
   }
 }
 
 @reflectiveTest
 class SourcesChangedEventTest {
@@ skipping 581 matching lines @@
   bool validateCacheConsistency() {
     fail("Unexpected invocation of validateCacheConsistency");
     return false;
   }
 
   @override
   void visitContentCache(ContentCacheVisitor visitor) {
     fail("Unexpected invocation of visitContentCache");
   }
 }