Bug 330941: Remove pref unused pref from locale file too, r=mconnor

browser/locales/en-US/chrome/browser-region/region.properties

@@ -8,7 +8,6 @@ releaseNotesURL=http://www.mozilla.org/products/firefox/releases/%S.html
 # firefox.js
 browser.startup.homepage=http://start.mozilla.org/firefox
 browser.throbber.url=http://www.mozilla.org/products/firefox/central.html
-browser.search.defaulturl=http://www.google.com/search?lr=&ie=UTF-8&oe=UTF-8&q=
 
 # Search engine order (order displayed in the search bar dropdown)s
 browser.search.order.1=Google