How to actually delete a post/topic?

I recently posted a topic, but I made some mistakes, so I deleted it and posted a new topic with the mistakes fixed.

But then I discovered that the delete button doesn’t actually delete anything, since it’s still there in the post list and the edit history function allows you to see what it said before it was deleted…

Is there a way for a mod or something to actually delete the post??

The post will be completely deleted after 24 hours.