Make the analysis server integration tests driver only.

pkg/analysis_server/test/integration/analysis/get_navigation_test.dart

 // Copyright (c) 2017, 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/plugin/protocol/protocol.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../integration_tests.dart';
 
@@ skipping 45 matching lines @@
 ''';
     writeFile(pathname, text);
     standardAnalysisSetup();
 
     await analysisFinished;
 
     AnalysisGetNavigationResult result =
         await sendAnalysisGetNavigation(pathname, 0, 0);
     expect(result.targets, isEmpty);
   }
-
-  @override
-  bool get enableNewAnalysisDriver => true;
 }