71042: Linux installer build: "English UNIX" in "View|Set Language"

(r=ssu,sr=erik)

xpfe/browser/resources/locale/en-US/unix/contents-platform.rdf

@@ -9,7 +9,6 @@
 
   <!-- locale information -->
   <RDF:Description about="urn:mozilla:locale:en-US"
-        chrome:displayName="English UNIX"
         chrome:author="mozilla.org"
         chrome:name="en-US"
         chrome:previewURL="http://www.mozilla.org/locales/en-US.gif">