Get rid of all the library tags.

test/handle_access_token_response_test.dart

Index: test/handle_access_token_response_test.dart
diff --git a/test/handle_access_token_response_test.dart b/test/handle_access_token_response_test.dart
index 4d822626c2043f74f9afe7e722bb1e5b98550a16..fe2a3387de5d4795c064eeafe4fe44c854e4a545 100644
--- a/test/handle_access_token_response_test.dart
+++ b/test/handle_access_token_response_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 handle_access_token_response_test;
-
 import 'dart:convert';
 
 import 'package:http/http.dart' as http;