Remove implementation of Panels on OSes other than ChromeOS.

chrome/test/data/panels/context_menu2/test.js

Index: chrome/test/data/panels/context_menu2/test.js
diff --git a/chrome/test/data/panels/context_menu2/test.js b/chrome/test/data/panels/context_menu2/test.js
deleted file mode 100644
index 3604d5891bb9c236facade5d3bd904f62bc5df68..0000000000000000000000000000000000000000
--- a/chrome/test/data/panels/context_menu2/test.js
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012 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 onclick(info) {
-  chrome.test.sendMessage("ow, don't do that!");
-}
-
-chrome.contextMenus.create({"title":"Extension Item Bogey",
-                            "onclick": onclick}, function() {
-  if (!chrome.runtime.lastError) {
-    chrome.test.sendMessage("created bogey item");
-  }
-});