Removes unused setting
Removes unused setting

DjangoAdminHackers/django-ajax-upload-widget,DjangoAdminHackers/django-ajax-upload-widget,hellhovnd/django-ajax-upload-widget,zmathew/django-ajax-upload-widget,DjangoAdminHackers/django-ajax-upload-widget,zmathew/django-ajax-upload-widget,zmathew/django-ajax-upload-widget,hellhovnd/django-ajax-upload-widget,hellhovnd/django-ajax-upload-widget