How di I elimante an effect from the program?

A few days ago I downloaded the Film Impact extension for premiere, only to discover that you had to pay for it, so I decided to uninstall it. After doing it I noticed that in the effects panel are still present all the effects of this extension (the extension window is no longer in the program) under the item "video effects" and obviously I can not use them since they have all the watermark if applied to a clip. I searched on the internet in all ways but I can not figure out how to remove these effects from the panel (I would literally delete them from the program). Apparently the basket icon is only used to remove effects from the "favorites" section. How do I remove these effects?