No - deletion of posts was banned some times ago - as to many posts were deleted and too often later replies/postings were than 'lost'. Also, deleting the first post at that time, had the deletion of the whole topic with all subsequent postings as a consequence.

But you can edit your post by hitting the 'pencil' above your post and then delete everything and just leave a dot (the minimum dot is required, the system would not accept a total deletion of everything).