Airport Icon in menu bar with no way to remove it, I have no airport

I bought a new Mac Pro with no airport, I transferred all my setting and info from my old powerbook with an airport, now it have the icon in my menu you bar with no airport setting page in system preferences to turn it off. It just says no airport card installed when I click on it. Is there some preference file I can delete or edit?

Its not harming anything it just bugs me 🙂