Remove some more library directives

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

Index: pkg/analysis_server/test/integration/server/test_all.dart
diff --git a/pkg/analysis_server/test/integration/server/test_all.dart b/pkg/analysis_server/test/integration/server/test_all.dart
index b2a8af0b439b487c023480c2aaa519ce170adb05..6ab8ac951740aaf5683d1643d07c3f9db19ad3bf 100644
--- a/pkg/analysis_server/test/integration/server/test_all.dart
+++ b/pkg/analysis_server/test/integration/server/test_all.dart
@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library test.integration.server.all;
-
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import 'get_version_test.dart' as get_version_test;