How to Remove Facebook Wall Posts
Sometimes you hit that "Share" button on Facebook only to regret it afterward. Or a friend may post an unwanted message on your wall. Fortunately, what is on your Facebook wall does not have to remain there forever. It is easy to delete unwanted posts that you or others published there. Use your owner privileges to remove unwanted posts and status updates that you no longer want others to see.
Point the mouse cursor to the top right of the wall post you want to delete.
Click the "x" button that appears.
Click "Remove Post..." Facebook will ask you, "Are you sure you want to delete this post?"
Click "Remove Post" to confirm.