I don’t think that would be allowed as per safety regulations.

Flight attendants are safety personnel who also serve food and drinks.

The jump seats facing the passengers are there for a reason.

Having said that if airlines would be allowed to fly without flight attendants they would.

Even skipped it back in the days when we were recording TNG episodes on tape. Fast forward and a magical chant of ‘Gene, Gene, Gene…’ to ensure stopping at Gene Roddenberry’s name as it indicated the end of the intro