Move hello message from It2MeService to It2MeChannel

remoting/webapp/unittests/it2me_service_unittest.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function() {
 
 'use strict';
 
 var appLauncher = null;
 var hangoutPort = null;
@@ skipping 111 matching lines @@
 
 test('should reject unknown connection', function() {
   it2meService.onWebappConnect_(webappPort);
   sinon.assert.called(webappPort.disconnect);
 
   var randomPort = createPort('unsupported.port.name');
   it2meService.onConnectExternal_(randomPort);
   sinon.assert.called(randomPort.disconnect);
 });
 
-test('messageExternal("hello") should return supportedFeatures', function() {
-  var response = null;
-  function callback(msg) {
-    response = msg;
-  }
-
-  it2meService.onMessageExternal_({
-    method: 'hello'
-  }, null, callback);
-
-  QUnit.ok(response.supportedFeatures instanceof Array);
-});
-
 })();