In my Playa field I've set a specific Channel, Author, and Status that the user will be able to filter on when on the EE publish page in the control panel. However it still presents a filter option to filter by Author and Status. The options available are only the ones that I set but even so I'd prefer to remove complexity and confusion by removing the option to add a specific filter — just search by typing in the box.
Is this possible? If so, how?