Want to delete unpublished draft that was auto-saved

I started making a copy change to a page (not a post) and when I previewed it, noticed that it caused a glitch in the page that I didn’t want. I did not publish this draft, but it auto-saved so now I’m caught with an unpublished, auto-saved draft which is incorrect and the published draft which is correct.

I want to be able to delete an auto-saved draft or revert to the version which is live. Am I missing something or is there no one-click way to do this?

Thanks!