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Step 1=First open your Facebook Account go to Facebook Developers Page .
Step 2 = Go to Facebook Developers Page & THEN Now Click on Edit App .
Step 3 = After Clicking on Edit App you will see option of Delete App,
Step 4 =Now click on Delete App & then Facebook will ask u to Confirm that you want to delete the App .or not.
Step 5 = Then Clicking on Confirm button you will get message that App. has been Deleted.
Step 6 = Thats all !! Your facebook Timeline is disabled now and you will get your old Facebook Profile Back .Have fun!!!
FOR MORE TRICKS CONTINUOUSLY VISIT THIS SITE...
REGARDS
ADMIN