Update the analysis server integration tests to always run on the analysis driver.

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

Index: pkg/analysis_server/test/integration/analysis/highlights_test.dart
diff --git a/pkg/analysis_server/test/integration/analysis/highlights_test.dart b/pkg/analysis_server/test/integration/analysis/highlights_test.dart
index ca6e425ea08b2ccad16dc5f3709b36a9be82f291..2469fd90d27ba1ba0731410b5d3c47f0853420e1 100644
--- a/pkg/analysis_server/test/integration/analysis/highlights_test.dart
+++ b/pkg/analysis_server/test/integration/analysis/highlights_test.dart
@@ -11,12 +11,11 @@ import '../integration_tests.dart';
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(AnalysisHighlightsTest);
-    defineReflectiveTests(AnalysisHighlightsTest_Driver);
   });
 }
 
-class AbstractAnalysisHighlightsTest
-    extends AbstractAnalysisServerIntegrationTest {
+@reflectiveTest
+class AnalysisHighlightsTest extends AbstractAnalysisServerIntegrationTest {
   test_highlights() {
     String pathname = sourcePath('test.dart');
     String text = r'''
@@ -144,12 +143,3 @@ int topLevelVariable;
     });
   }
 }
-
-@reflectiveTest
-class AnalysisHighlightsTest extends AbstractAnalysisHighlightsTest {}
-
-@reflectiveTest
-class AnalysisHighlightsTest_Driver extends AbstractAnalysisHighlightsTest {
-  @override
-  bool get enableNewAnalysisDriver => true;
-}