Removed border from the XUL browser, editor, and iframe tags. This allows content coming up in chromeless pop-up windows not be visually cluttered with a needless border. r=hyatt.

xpfe/global/resources/skin/skin.css

@@ -41,10 +41,6 @@ window.dialog {
 
 /******** Browser, editor, iframe ********/
 
-browser, editor, iframe {
-  border: 2px solid black;
-}
-
 /******** Box *********/