Remove overlays from chrome.manifest

src/chrome.manifest

 content torbutton chrome/content/
-overlay chrome://browser/content/browser.xul chrome://torbutton/content/torbutton.xul
-overlay chrome://browser/content/preferences/connection.xul chrome://torbutton/content/pref-connection.xul
-overlay chrome://messenger/content/messenger.xul chrome://torbutton/content/torbutton_tb.xul
-overlay chrome://messenger/content/messengercompose/messengercompose.xul chrome://torbutton/content/torbutton_tb.xul
-overlay about:addons chrome://torbutton/content/torbutton-extensions.xul
-overlay chrome://mozapps/content/extensions/extensions.xul chrome://torbutton/content/torbutton-extensions.xul
 resource torbutton ./
 resource torbutton-assets resource://torbutton/chrome/skin/ contentaccessible=yes
 
 # browser branding
 override chrome://branding/locale/brand.dtd chrome://torbutton/locale/brand.dtd
 override chrome://branding/locale/brand.properties chrome://torbutton/locale/brand.properties
-overlay chrome://browser/content/aboutDialog.xul chrome://torbutton/content/aboutDialog.xul
-
-# UI customization
-overlay chrome://browser/content/browser.xul chrome://torbutton/content/menu-items-overlay.xul
-overlay chrome://browser/content/browser.xul chrome://torbutton/content/menu-overlay.xul
-overlay chrome://browser/content/browser.xul chrome://torbutton/content/tor-circuit-display.xul
 
 # Strings for the about:tbupdate page
 override chrome://browser/locale/aboutTBUpdate.dtd chrome://torbutton/locale/aboutTBUpdate.dtd