MD Settings: Remove unused settings.main.rendered global variable.

chrome/browser/resources/settings/settings_main/settings_main_rendered.js

Index: chrome/browser/resources/settings/settings_main/settings_main_rendered.js
diff --git a/chrome/browser/resources/settings/settings_main/settings_main_rendered.js b/chrome/browser/resources/settings/settings_main/settings_main_rendered.js
deleted file mode 100644
index 70a30f45e9e71cbc531cd10f34e7508c271bb7c8..0000000000000000000000000000000000000000
--- a/chrome/browser/resources/settings/settings_main/settings_main_rendered.js
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2016 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.
-
-cr.define('settings.main', function() {
-  /** @type {!Promise} */
-  var promise;
-
-  return {
-    /** @return {!Promise} */
-    get rendered() {
-      return assert(promise, 'rendered promise must be set before accessing');
-    },
-
-    /** @param {!Promise} rendered */
-    set rendered(rendered) {
-      assert(!promise, 'settings.main.rendered should only be set once');
-      promise = rendered;
-    },
-  };
-});