User blog comment:Dopp/Technical Update: May 31, 2011/@comment-1356465-20110531234615/@comment-2093602-20110601193448

You can change it on Layton wiki if you want. I don't mind leaving it in CSS, but I guess this is the better option :P. I'll edit the css now.

My guess is though that if it's the wiki code that's shared, the attribution shouldn't appear on the help pages.