How to uninstall F-Droid Privileged Extension OTA from my phone

I want to konw
how to uninstall F-Droid Privileged Extension OTA from my phone

Just delete the folder including the apk, or uninstall via a root uninstaller (presuming you are rooted).

How did you install? Which device? Where did you get the custom ROM?

Also, you can just disable the PrivExt usage in Settings, Expert, last option