Make the analysis server integration tests driver only.

pkg/analysis_server/test/integration/server/shutdown_test.dart

Index: pkg/analysis_server/test/integration/server/shutdown_test.dart
diff --git a/pkg/analysis_server/test/integration/server/shutdown_test.dart b/pkg/analysis_server/test/integration/server/shutdown_test.dart
index 53a01a9d59e1da9df77746f808cb49b38689d71a..a31fcbfdc72a6e82436578c8b203b6f8afd35313 100644
--- a/pkg/analysis_server/test/integration/server/shutdown_test.dart
+++ b/pkg/analysis_server/test/integration/server/shutdown_test.dart
@@ -12,11 +12,11 @@ import '../integration_tests.dart';
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(ShutdownTest);
-    defineReflectiveTests(ShutdownTest_Driver);
   });
 }
 
-class AbstractShutdownTest extends AbstractAnalysisServerIntegrationTest {
+@reflectiveTest
+class ShutdownTest extends AbstractAnalysisServerIntegrationTest {
   test_shutdown() {
     return sendServerShutdown().then((_) {
       return new Future.delayed(new Duration(seconds: 1)).then((_) {
@@ -29,12 +29,3 @@ class AbstractShutdownTest extends AbstractAnalysisServerIntegrationTest {
     });
   }
 }
-
-@reflectiveTest
-class ShutdownTest extends AbstractShutdownTest {}
-
-@reflectiveTest
-class ShutdownTest_Driver extends AbstractShutdownTest {
-  @override
-  bool get enableNewAnalysisDriver => true;
-}