Remove broken test

tests/html/js_interop_2_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('JsInterop2Test');
 #import('../../lib/unittest/unittest.dart');
 #import('../../lib/unittest/html_config.dart');
 #import('dart:html');
 #import('dart:json');
 
 injectSource(code) {
   final script = new ScriptElement();
   script.type = 'text/javascript';
   script.innerHTML = code;
   document.body.nodes.add(script);
 }
 
 isolateTest = """
   function test(data) {
     if (data == 'sent')
       return 'received';
   }
 
   var port = new ReceivePortSync(test);
   window.registerPort('test', port.toSendPort());
 """;
 
 main() {
   useHtmlConfiguration();
-  var callback;
-  test('dart.js', () {
-    callback = expectAsync1((e) {
-      Expect.isTrue(e.data);
-      window.on.message.remove(callback);
-    });
-    window.on.message.add(callback);
-    injectSource(@"window.postMessage(window._$dart$initialized, '*');");
-  });
 
   test('isolateTest', () {
       injectSource(isolateTest);
 
       var port = window.lookupPort('test');
       var result = port.call('sent');
       Expect.equals('received', result);
 
       result = port.call('ignore');
       Expect.isNull(result);
   });  
 }