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

chrome/test/data/webui/settings/privacy_page_test.js

Index: chrome/test/data/webui/settings/privacy_page_test.js
diff --git a/chrome/test/data/webui/settings/privacy_page_test.js b/chrome/test/data/webui/settings/privacy_page_test.js
index 9408b166eb77d3f60187c3dc003825a03d34dfaf..1a2d9883de988c901ba5cec5fc15fc054c340f57 100644
--- a/chrome/test/data/webui/settings/privacy_page_test.js
+++ b/chrome/test/data/webui/settings/privacy_page_test.js
@@ -72,10 +72,6 @@ cr.define('settings_privacy_page', function() {
       /** @type {SettingsPrivacyPageElement} */
       var page;
 
-      suiteSetup(function() {
-        settings.main.rendered = Promise.resolve();
-      });
-
       setup(function() {
         testBrowserProxy = new TestPrivacyPageBrowserProxy();
         settings.PrivacyPageBrowserProxyImpl.instance_ = testBrowserProxy;