fix for tooltip on lock icon, forget the bug number, r=pchen

extensions/psm-glue/res/content/securityOverlay.xul

@@ -1,14 +0,0 @@
-<?xml version="1.0"?>
-<?xml-stylesheet href="chrome://communicator/skin/securityOverlay.css" type="text/css"?> 
-
-<!DOCTYPE window SYSTEM "chrome://communicator/locale/securityOverlay.dtd">
-
-<overlay id="NavSecurityOverlay"
-         xmlns:html="http://www.w3.org/1999/xhtml"
-         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
-
-  <script language="JavaScript" src="chrome://communicator/content/securityUI.js" />
-
-  <statusbarpanel id="security-button" onclick="displayPageInfo()" tooltip="aToolTip" tooltiptext="&lockIcon.label;"/>    
-      
-</overlay>