This is a blockchain xD you cant unwind a lot of things :)))))
But in my opinion it is not an abuse and not a big problem (unless moderators will think other way). Still there are a few options to do (if you'd like to give more promotion to your stuff):

• make a cross-post of this post to another community or two
• erase the content of the post, and change it to the stuff more 'appropriate' to community subject (dont delete the content itself -- copypaste it, to a draft, and post later; but dont abuse this method, I guess you can do it in a short period of time before 7-days-post payout period; other way hive-watchers may consider it an abuse)
• do nothing ;)

!PIZZA