I can't remove a filter that added by media-tags plugin. it was originally added this way:
add_filter( 'attachment_fields_to_edit', 'mediatags_show_fields_to_edit', 11, 2 );
I tried to remove it this way:
remove_filter( 'attachment_fields_to_edit','mediatags_show_fields_to_edit', 11, 2 );
Where I did wrongly? How can I remove this filter?