Delete unnecessary save

IPython/html/static/notebook/js/widgets/widget.js

@@ -98,7 +98,6 function(widget_manager, underscore, backbone){
                 }
             }
             //TODO: are there callbacks that make sense in this case?  If so, attach them here as an option
-            this.save();
         },
 
         _handle_status: function (msg, callbacks) {