Get rid of all the library tags.

lib/src/runner/browser/safari.dart

 // Copyright (c) 2015, 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 test.runner.browser.safari;
-
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:path/path.dart' as p;
 
 import '../../util/io.dart';
 import 'browser.dart';
 
 /// A class for running an instance of Safari.
@@ skipping 25 matching lines @@
         "<script>location = " + JSON.encode(url.toString()) + "</script>");
 
     var process = await Process.start(executable, [redirect]);
 
     process.exitCode
         .then((_) => new Directory(dir).deleteSync(recursive: true));
 
     return process;
   }
 }