How do I delete sync'd movies from my tablet?

I’m trying to free up memory on my amazon fire hdx by removing the sync’d movies. But I can’t figure out how to delete them.

The way i do it on android is:

On the main page of the app, click the 3 little dots in the top right corner, then sync status, then you will see the synced items. Click on them and you will see an icon of a garbage can in the top right.

Hope this helps.

I hit “sync status” and it says “no synced items” … but the movies are still in the “local and sync content”

Where did the Garbage Can go? Not on any of my Android apps available options to delete a watched sync’d movie or show.