Make the analysis server integration tests driver only.

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

Index: pkg/analysis_server/test/integration/analysis/reanalyze_concurrent_test.dart
diff --git a/pkg/analysis_server/test/integration/analysis/reanalyze_concurrent_test.dart b/pkg/analysis_server/test/integration/analysis/reanalyze_concurrent_test.dart
index adc698463ff64affb9fc461c3fd0854b76154b98..9d5fd230e68f356ee8bddb5651ec04317506579d 100644
--- a/pkg/analysis_server/test/integration/analysis/reanalyze_concurrent_test.dart
+++ b/pkg/analysis_server/test/integration/analysis/reanalyze_concurrent_test.dart
@@ -17,11 +17,11 @@ import '../integration_tests.dart';
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(ReanalyzeTest);
-    defineReflectiveTests(ReanalyzeTest_Driver);
   });
 }
 
-class AbstractReanalyzeTest extends AbstractAnalysisServerIntegrationTest {
+@reflectiveTest
+class ReanalyzeTest extends AbstractAnalysisServerIntegrationTest {
   test_reanalyze_concurrent() {
     String pathname = sourcePath('test.dart');
     String text = '''
@@ -47,12 +47,3 @@ main() {}''';
     });
   }
 }
-
-@reflectiveTest
-class ReanalyzeTest extends AbstractReanalyzeTest {}
-
-@reflectiveTest
-class ReanalyzeTest_Driver extends AbstractReanalyzeTest {
-  @override
-  bool get enableNewAnalysisDriver => true;
-}