Remove ajaxForm:success handler in dropzone
Remove ajaxForm:success handler in dropzone

Not needed anymore, since we now have proper editable dropzone widgets.
It also conflicted with the containing form in some browsers.

indico/indico,ThiefMaster/indico,mic4ael/indico,mvidalgarcia/indico,ThiefMaster/indico,mvidalgarcia/indico,OmeGak/indico,DirkHoffmann/indico,indico/indico,DirkHoffmann/indico,OmeGak/indico,pferreir/indico,OmeGak/indico,pferreir/indico,pferreir/indico,indico/indico,mic4ael/indico,DirkHoffmann/indico,mic4ael/indico,mic4ael/indico,pferreir/indico,OmeGak/indico,DirkHoffmann/indico,mvidalgarcia/indico,indico/indico,ThiefMaster/indico,ThiefMaster/indico,mvidalgarcia/indico