a way for delete or remove the timeline feature from your account on Facebook :
first step: log in “Facebook developers” the normal page of Facebook will appear but continue until steps will also appear and after you fill and skip them ,then the page below will appear click the button “edit app”.
sec step: the only way to delete the timeline by deleting the app ,so click at “delete app”.
third step: a message will appear to confirm the deleting so click at “confirm” ,and now the timeline was removed .