Uninclude browserid_support in devreg (bug 792795)

Everything browserid_support.js does is included in login.js.

mkt/asset_bundles.py

@@ -189,7 +189,6 @@ JS = {
         'js/impala/forms.js',
 
         # Login.
-        'js/zamboni/browserid_support.js',
         'js/impala/login.js',
 
         # Fix-up outgoing links.