Remove two empty/useless domain tests.

pkg/analysis_server/test/search/search_domain_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 test.search.domain;
-
-import 'package:analysis_server/src/analysis_server.dart';
-import 'package:analysis_server/src/protocol2.dart';
-import 'package:analysis_server/src/search/search_domain.dart';
-import 'package:analysis_testing/mock_sdk.dart';
-import 'package:analyzer/file_system/memory_file_system.dart';
-import 'package:unittest/unittest.dart';
-
-import '../mocks.dart';
-
-
-main() {
-  groupSep = ' | ';
-
-  MockServerChannel serverChannel;
-  MemoryResourceProvider resourceProvider;
-  AnalysisServer server;
-  SearchDomainHandler handler;
-
-  setUp(() {
-    serverChannel = new MockServerChannel();
-    resourceProvider = new MemoryResourceProvider();
-    server = new AnalysisServer(
-        serverChannel,
-        resourceProvider,
-        new MockPackageMapProvider(),
-        null,
-        new MockSdk());
-    handler = new SearchDomainHandler(server);
-  });
-
-  group('SearchDomainHandler', () {
-    test('findMemberReferences', () {
-      // TODO(paulberry): Why are we passing null here?
-      var request = new SearchFindMemberReferencesParams(null).toRequest('0');
-      var response = handler.handleRequest(request);
-      // TODO(brianwilkerson) implement
-      //expect(response, isNull);
-    });
-  });
-}