Both Chrome and Internet have something once you've pressed menu/settings/privacy. (Chrome has the delete in a bar at the botton, Internet has delete personal info as the last item.)
If you're using a different web browser you may have to go elsewhere but, since you didn't tell us which browser you're using, no one can run that one and find the setting for you.
(If you're running Chrome or Internet, go to Play and install them again - they'll update if there's a newer version. If you're running an old version it may not have a 'Privacy' item in Settings.)