Remove the non-driver versions of several tests

pkg/analysis_server/test/services/refactoring/rename_unit_member_test.dart

Index: pkg/analysis_server/test/services/refactoring/rename_unit_member_test.dart
diff --git a/pkg/analysis_server/test/services/refactoring/rename_unit_member_test.dart b/pkg/analysis_server/test/services/refactoring/rename_unit_member_test.dart
index 5d466e9020dc0decdcfaed7b607df851201fb2de..84d8e7824339375152b9b829d9561b9502b3df2d 100644
--- a/pkg/analysis_server/test/services/refactoring/rename_unit_member_test.dart
+++ b/pkg/analysis_server/test/services/refactoring/rename_unit_member_test.dart
@@ -12,12 +12,14 @@ import 'abstract_rename.dart';
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(RenameUnitMemberTest);
-    defineReflectiveTests(RenameUnitMemberTest_Driver);
   });
 }
 
 @reflectiveTest
 class RenameUnitMemberTest extends RenameRefactoringTest {
+  @override
+  bool get enableNewAnalysisDriver => true;
+
   test_checkFinalConditions_hasTopLevel_ClassElement() async {
     await indexTestUnit('''
 class Test {}
@@ -622,9 +624,3 @@ main() {
 ''');
   }
 }
-
-@reflectiveTest
-class RenameUnitMemberTest_Driver extends RenameUnitMemberTest {
-  @override
-  bool get enableNewAnalysisDriver => true;
-}