Remove unnecessary tests

pkg/analysis_server/test/edit/refactoring_test.dart

Index: pkg/analysis_server/test/edit/refactoring_test.dart
diff --git a/pkg/analysis_server/test/edit/refactoring_test.dart b/pkg/analysis_server/test/edit/refactoring_test.dart
index eb52217e0f644050818c93e72f21961d413fa578..1790a28c5df762bdb058011ba4c21167a23e9fdd 100644
--- a/pkg/analysis_server/test/edit/refactoring_test.dart
+++ b/pkg/analysis_server/test/edit/refactoring_test.dart
@@ -29,7 +29,6 @@ main() {
     defineReflectiveTests(InlineMethodTest);
     defineReflectiveTests(MoveFileTest);
     defineReflectiveTests(RenameTest);
-    defineReflectiveTests(_NoSearchEngine);
   });
 }
 
@@ -2033,42 +2032,3 @@ class _AbstractGetRefactoring_Test extends AbstractAnalysisTest {
     server.handlers = [handler];
   }
 }
-
-@reflectiveTest
-class _NoSearchEngine extends _AbstractGetRefactoring_Test {
-  @override
-  Index createIndex() {
-    return null;
-  }
-
-  test_getAvailableRefactorings() async {
-    addTestFile('''
-main() {
-  print(1 + 2);
-}
-''');
-    await waitForTasksFinished();
-    Request request =
-        new EditGetAvailableRefactoringsParams(testFile, 0, 0).toRequest('0');
-    return _assertErrorResponseNoIndex(request);
-  }
-
-  test_getRefactoring_noSearchEngine() async {
-    addTestFile('''
-main() {
-  print(1 + 2);
-}
-''');
-    await waitForTasksFinished();
-    Request request = new EditGetRefactoringParams(
-            RefactoringKind.EXTRACT_LOCAL_VARIABLE, testFile, 0, 0, true)
-        .toRequest('0');
-    return _assertErrorResponseNoIndex(request);
-  }
-
-  _assertErrorResponseNoIndex(Request request) async {
-    Response response = await serverChannel.sendRequest(request);
-    expect(response.error, isNotNull);
-    expect(response.error.code, RequestErrorCode.NO_INDEX_GENERATED);
-  }
-}