Issue 2350 - Remove Add-ons, Apps and Sync

mobile/android/base/resources/menu-large-v11/browser_app_menu.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 
     <item android:id="@+id/reload"
           android:icon="@drawable/ic_menu_reload"
           android:title="@string/reload"
@@ skipping 66 matching lines @@
           android:icon="@drawable/ic_menu_tools">
 
         <menu>
 
             <item android:id="@+id/downloads"
                   android:icon="@drawable/ic_menu_downloads"
                   android:title="@string/downloads"/>
 
             <item android:id="@+id/addons"
                   android:icon="@drawable/ic_menu_addons"
-                  android:title="@string/addons"/>
+                  android:title="@string/addons"
+                  android:visible="false" />

[Felix Dahlke, 2015/04/23 16:07:33]

The "visible" attribute generally seems to come between "icon" and "title"
below. Wouldn't hurt to do that here too I guess - minimally invasive change
that way. Otherwise I'd nit pick that there's usually no space before `/>` :P

 
             <item android:id="@+id/apps"
                   android:icon="@drawable/ic_menu_apps"
-                  android:title="@string/apps"/>
+                  android:title="@string/apps"
+                  android:visible="false" />
 
             <item android:id="@+id/new_guest_session"
                   android:icon="@drawable/ic_menu_guest"
                   android:visible="false"
                   android:title="@string/new_guest_session"/>
 
         </menu>
 
     </item>
 
     <item android:id="@+id/char_encoding"
           android:icon="@drawable/ic_menu_character_encoding"
           android:visible="false"
           android:title="@string/char_encoding"/>
 
     <item android:id="@+id/settings"
           android:icon="@drawable/ic_menu_settings"
           android:title="@string/settings" />
 
     <item android:id="@+id/help"
           android:title="@string/help_menu" />
 
     <item android:id="@+id/exit_guest_session"
           android:icon="@drawable/ic_menu_guest"
           android:visible="false"
           android:title="@string/exit_guest_session"/>
 </menu>