deleting a post

[Act1]

Can someone tell me how to delete a post in case i posted a thread by mistake?
I know how to edit but i don't see where it says delete.

[undertaker]

I also mistakenly post in an another category , so i want to remove my post from that category, can any tell me how can delete my post, or move post from that category to another category.

[admin]

Posts can only be deleted by the admin.