Welcome to WebmasterWorld Guest from 18.104.22.168
But request is "pending" :((
How I can delete this request?
I can't guarantee it, but my memory of using this feature is that Google absolutely requires the URL to be either blocked by robots.txt, or returning a 404 error.
If neither of these is the case then I think they will refuse your accidental request anyways.
Also, in your Google Webmaster Tools account, you can now reverse a removal request before the 180 days expires, just in case something goes wrong here. So authenticating your site in GWT can be a very good move.