Revert "Add AppWindow.setVisibleOnAllWorkspaces." (https://codereview.chromium.org/469993003)

chrome/test/data/extensions/platform_apps/windows_api_visible_on_all_workspaces/in_stable/background.js

Index: chrome/test/data/extensions/platform_apps/windows_api_visible_on_all_workspaces/in_stable/background.js
diff --git a/chrome/test/data/extensions/platform_apps/windows_api_visible_on_all_workspaces/in_stable/background.js b/chrome/test/data/extensions/platform_apps/windows_api_visible_on_all_workspaces/in_stable/background.js
deleted file mode 100644
index b996cf0d2725005d26b85f8125e9e70d423f527f..0000000000000000000000000000000000000000
--- a/chrome/test/data/extensions/platform_apps/windows_api_visible_on_all_workspaces/in_stable/background.js
+++ /dev/null
@@ -1,28 +0,0 @@
-// 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.
-
-// All these tests are run in Stable channel.
-
-var error = "The visibleOnAllWorkspaces option requires dev channel or newer.";
-
-chrome.app.runtime.onLaunched.addListener(function() {
-  chrome.test.runTests([
-
-    // Check CreateWindowOptions.visibleOnAllWorkspaces().
-    function testCreateOption() {
-      chrome.app.window.create(
-          'index.html', {
-            visibleOnAllWorkspaces: true,
-          }, chrome.test.callbackFail(error));
-    },
-
-    // Check chrome.app.window.canSetVisibleOnAllWorkspaces().
-    function testCanSetVisibleOnAllWorkspaces() {
-      chrome.test.assertTrue(
-          chrome.app.window.canSetVisibleOnAllWorkspaces === undefined);
-      chrome.test.callbackPass(function () {})();
-    },
-
-  ]);
-});