Remove the non-driver versions of several tests

pkg/analysis_server/test/search/member_references_test.dart

Index: pkg/analysis_server/test/search/member_references_test.dart
diff --git a/pkg/analysis_server/test/search/member_references_test.dart b/pkg/analysis_server/test/search/member_references_test.dart
index 42642ab95bc902593d269f941c8c780f385b6be2..0d6f3d414081a5454c3a2ffcd3593827eaa620ee 100644
--- a/pkg/analysis_server/test/search/member_references_test.dart
+++ b/pkg/analysis_server/test/search/member_references_test.dart
@@ -14,7 +14,6 @@ import 'abstract_search_domain.dart';
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(MemberReferencesTest);
-    defineReflectiveTests(MemberReferencesTest_Driver);
   });
 }
 
@@ -33,6 +32,12 @@ class MemberReferencesTest extends AbstractSearchDomainTest {
     return waitForSearchResults();
   }
 
+  @override
+  void setUp() {
+    enableNewAnalysisDriver = true;
+    super.setUp();
+  }
+
   test_fields_explicit() async {
     addTestFile('''
 class A {
@@ -113,12 +118,3 @@ mainUnresolved(a, b) {
     assertHasRef(SearchResultKind.INVOCATION, 'foo(20)', true);
   }
 }
-
-@reflectiveTest
-class MemberReferencesTest_Driver extends MemberReferencesTest {
-  @override
-  void setUp() {
-    enableNewAnalysisDriver = true;
-    super.setUp();
-  }
-}