Get rid of all the library tags.

test/transformer/can_log_messages_test.dart

Index: test/transformer/can_log_messages_test.dart
diff --git a/test/transformer/can_log_messages_test.dart b/test/transformer/can_log_messages_test.dart
index 314ca705fdc6d649ab1caf2ee5660add377411bb..0495050225224532f790eb566295306745ba1676 100644
--- a/test/transformer/can_log_messages_test.dart
+++ b/test/transformer/can_log_messages_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';
 import 'package:scheduled_test/scheduled_stream.dart';