Issue 6599 - Hotfix to drop updated page everywhere

lib/prefs.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 181 matching lines @@
 defaults.suppress_first_run_page = false;
 
 /**
  * Additonal subscriptions to be automatically added when the extension is
  * loaded. This preference isn't set by the extension but can be pre-configured
  * externally.
  *
  * @type {string[]}
  */
 defaults.additional_subscriptions = [];
-
-/**
- * The version of major updates that the user is aware of. If it's too low,
- * the updates page will be shown to inform the user about intermediate changes.
- *
- * @type {number}
- */
-defaults.last_updates_page_displayed = 0;
 
 /**
   * @namespace
   * @static
   */
 let Prefs = exports.Prefs = {
   /**
    * Adds a callback that is called when the
    * value of a specified preference changed.
    *
@@ skipping 160 matching lines @@
           eventEmitter.emit(pref);
         }
       }
     });
   }
 
   Prefs.untilLoaded = Promise.all([localLoaded, managedLoaded]).then(onLoaded);
 }
 
 init();