Since when is this not allowed? And if this was true that its not allowed then that means 1and1.com has been in violation for many years. What does it bother you anyways? If you don't like it then why not just delete the page and make a new one?
If you want to report any thing to adsense, then go here https://www.google.com/adsense/supp...ort+a+policy+violation&Action.Search=Continue