Get rid of all the library tags.

test/cache/repair/handles_corrupted_global_lockfile_test.dart

Index: test/cache/repair/handles_corrupted_global_lockfile_test.dart
diff --git a/test/cache/repair/handles_corrupted_global_lockfile_test.dart b/test/cache/repair/handles_corrupted_global_lockfile_test.dart
index 46f61b1da55a7c719ee88b8bff7b78d4f9df1961..e9bae170ea957ed1b8e1fbbd5218fea38fe7a2b7 100644
--- a/test/cache/repair/handles_corrupted_global_lockfile_test.dart
+++ b/test/cache/repair/handles_corrupted_global_lockfile_test.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 pub_tests;
-
 import 'package:pub/src/exit_codes.dart' as exit_codes;
 import 'package:scheduled_test/scheduled_test.dart';