removing a plugin from within the "manage plugins" section of creative cloud

Hi, I know this seems rather silly, but for the life of me, it makes no sense that if you've used a plugin, and don't like it, then why should you be forced to have it show up on in the list under "manage plugins"? A similar thing should be said for plugins that are no longer maintained by the original publisher. If they haven't been updated in at least 3 years, the publisher should be contacted first to see if they still want to keep it. If not, then delete it. Otherwise, you're just adding more confusion for novice users like myself. 

Anyways, that's beside the point... How do I get rid of plugins that I will never reinstall ever again from the manage plugins list within Creative Cloud app on macOS? thanks!