Add $force parameter to wp_delete_*() functions

[scribu]

With the new trash functionality, there is no way to delete a post or attachment directly. You have to call the function two times.

Both wp_delete_post() and wp_delete_attachment should have an optional $force parameter that bypasses the trash.

I believe line 1148

 return wp_delete_attachment($postid);

should become

 return wp_delete_attachment($postid, $force);

so that using wp_delete_post on an attachment maintains its behavior. Without this change a call of wp_delete_post (with force) on an attachment would move it to trash instead.

Fixed in [12158].