dart2js: Remove spurious comment in test.

tests/language/deferred_closurize_load_library_test.dart

 // Copyright (c) 2014, 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.
 
 import 'package:expect/expect.dart';
 import 'package:async_helper/async_helper.dart';
 
-// This library contains a member loadLibrary.
-// Check that we shadow this member.
 import "deferred_closurize_load_library_lib.dart" deferred as lib;
 
 void main() {
   var x = lib.loadLibrary;
   asyncStart();
   x().then((_) {
     Expect.isTrue(lib.trueVar);
     asyncEnd();
   });
 }