Step 1: Login to your Facebook or go to facebook Developers page.
Step 2: Now you see the same screen you saw when you were activating your Facebook Timeline but this time you will click “Edit App” instead of “Create New App”
Step 3: After clicking Edit App you will see the same app you build when you enabled Facebook Timeline.
Step 4: On bottom left of your screen there will be an option to “Delete App” click that.
Step 5: Facebook will now confirm whether you really want to delete this app or not, click Confirm.
Step 6: After clicking Confirm you will get a confirmation pop-up that your app has successfully been deleted, click “Ok”
Step 7: And that was it, you just disabled Facebook Timeline, go back to your profile and you will see your old Facebook Profile.
