Followup to bug 339415 - remove a newly added consumer of builtinURLs.js r=IanN

git-svn-id: svn://10.0.0.236/trunk@206475 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/mailnews/compose/prefs/resources/content/pref-composing_messages.js

@@ -129,8 +129,8 @@ function SelectLanguage(aTarget) {
     if (aTarget.value != "more-cmd")
       gLastSelectedLang = aTarget;
     else {
-      window.openDialog(getBrowserURL(), "_blank", "chrome,all,dialog=no",
-                        xlateURL('urn:clienturl:composer:spellcheckers'));
+      window.open(parent.hPrefWindow.getPref("localizedstring",
+                                             "editor.spellcheckers.url"));
       if (gLastSelectedLang)
         document.getElementById("languageMenuList").selectedItem = gLastSelectedLang;
     }

mozilla/mailnews/compose/prefs/resources/content/pref-composing_messages.xul

@@ -2,8 +2,6 @@
 
 <?xml-stylesheet href="chrome://communicator/skin/" type="text/css"?>
 
-<?xul-overlay href="chrome://communicator/content/utilityOverlay.xul"?>
-
 <!DOCTYPE page [
 <!ENTITY % pref-composing_messagesDTD SYSTEM "chrome://messenger/locale/messengercompose/pref-composing_messages.dtd" >
 %pref-composing_messagesDTD;