Get rid of all the library tags.

test/cache/repair/reinstalls_hosted_packages_test.dart

Index: test/cache/repair/reinstalls_hosted_packages_test.dart
diff --git a/test/cache/repair/reinstalls_hosted_packages_test.dart b/test/cache/repair/reinstalls_hosted_packages_test.dart
index c5deaa0641bcf8aed9e7e8c2284232a90fbb7e88..871c5df840d1f08a0d62df04f8c8df5ba1ce3b1e 100644
--- a/test/cache/repair/reinstalls_hosted_packages_test.dart
+++ b/test/cache/repair/reinstalls_hosted_packages_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 '../../descriptor.dart' as d;
 import '../../test_pub.dart';