How do I delete this?

I posted one of my old Blogger posts but am unable to sign into it. It is a very old blog. I try to sign in and it takes me to a newer version of my old blog. Anyway. I have tried to delete one of my Steemit posts, but don't know how to do it. I tried to edit it to be a post from the Blogger that I can sign into, but it made a separate Steemit post and the other one is still showing.

Please tell me how to delete the post. It is from my original Blogger, but I don't know how to sign into it. I can make a video of what happens when I click the link. It really is my blog, though, I would also like to delete it, since I can no longer sign into it.