Get rid of all the library tags.

test/dependency_computer/conservative_dependencies_test.dart

Index: test/dependency_computer/conservative_dependencies_test.dart
diff --git a/test/dependency_computer/conservative_dependencies_test.dart b/test/dependency_computer/conservative_dependencies_test.dart
index 78cd3efeb4cd86b4eee97e6e176c53858ed7d02e..9a140457eef8b01ea22378268749e3ca137ef8c3 100644
--- a/test/dependency_computer/conservative_dependencies_test.dart
+++ b/test/dependency_computer/conservative_dependencies_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:scheduled_test/scheduled_test.dart';
 
 import '../descriptor.dart' as d;