Get rid of all the library tags.

test/hmac_sha1_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // 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 tag to allow the test to run on Dartium.
-library hmac_sha1_test;
-
 import "package:crypto/crypto.dart";
 import "package:test/test.dart";
 
 import 'utils.dart';
 
 void main() {
   group("standard vector", () {
     for (var i = 0; i < _inputs.length; i++) {
       test(_macs[i], () {
         expectHmacEquals(new SHA1(), _inputs[i], _keys[i], _macs[i]);
@@ skipping 906 matching lines @@
   'd78807f2a69d8e348cbd2c2d745f342397e20a41',
   '9602a3a1fd2dc3c55df5815ac0517001f8c6593b',
   'b95df20e4e63936b74af4ceb7ad94d4e4b56ea8d',
   '5f009c918e2f8d7c9f9087b78af44f54518e1c5a',
   'f92f9c4b8d423b14ac7ad924f183a1cc27de6afd',
   'f476bd42bae22e645cedf601511b1ab8f2852b2c',
   '48d48ceb4c1f3e6b1e9c0fb8515f1121b846c19b',
   '9e51be58cf2d5c8e85556b8f3d484109fb49553a',
   '4ac41ab89f625c60125ed65ffa958c6b490ea670'
 ];