for the very little amount over why bother!! i think we all have slightly over filled with oil at one point or another, for the small amount you have been overfilled with it wont cause a problem, the oil you have viscosty is fine so i would just leave it.
I accidently over filled a couple of services ago - mind was on somthing else before i knew it i had put quiet a bit more in - the car ran fine until i changed the oil again 4 months later.
you may even find you might loose that oil though a slight leak or burn within a few months..
roy