Get rid of all the library tags.

test/snapshot/creates_a_snapshot_for_immediate_and_transitive_dep_test.dart

Index: test/snapshot/creates_a_snapshot_for_immediate_and_transitive_dep_test.dart
diff --git a/test/snapshot/creates_a_snapshot_for_immediate_and_transitive_dep_test.dart b/test/snapshot/creates_a_snapshot_for_immediate_and_transitive_dep_test.dart
index 3cc5a9e77febcb8da517418e53adad3959c1d5d6..0c61549321b162d60cd729cc02bd574c6d6d027c 100644
--- a/test/snapshot/creates_a_snapshot_for_immediate_and_transitive_dep_test.dart
+++ b/test/snapshot/creates_a_snapshot_for_immediate_and_transitive_dep_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:path/path.dart' as p;
 import 'package:scheduled_test/scheduled_test.dart';