You cannot delete an account. Why do you need to? If you don't wish to participate, just don't log on to the site.
I have deleted your profile for you. The closest thing to an account deletion is all your profile info, photos, email address and messages are deleted, but your forum posts remain. Your profile is renamed as a Guest and all posts you made will be shown as created by a Guest profile. You can no longer log in. It's not possible to do a total deletion of posts as it would have a knock on effect to threads and some wouldn't make any sense, also any thread you started would be wiped from the site, along with all the replies from other people.
You are appalling, creating an account an asking for it to be deleted half an hour later. Do you think I have nothing better to do with my time bitch? Deleted.