Researching this topic has shown that removing unwanted plugins has been a long-requested and summarily ignored issue.
Now that all the previous requests have been closed due to lack of adequate response, I’m going to open it again.
I would desperately love to be able to remove a plugin from my recent list. There’s no way to try a plugin without trying it. Once it has been tried, no matter how poor the plugin may be, it will remain in your recent list for eternity.
I’ve tried all the suggestions (clearing cache, clearing local storage, uninstalling and reinstalling the desktop app) and nothing will remove the unusable plugin from my list. Since it has the same name as a plugin that actually works, not being able to remove the clutter of failed plugins has become a significant nuisance.