Hi Stu,
In theory you don't need the clutch switch but its a safety feature and stops the electric starter from working when you are in gear ( always good for a laugh ) If you are happy with that ( I personally would prefer to keep it ) then you can do without. Can't remember off the top of my head whether the switch is normally open or closed but you would either short the two wires together or insulate them apart to make it all work depending on which it is.
Sorry have never taken one of these out, someone who has will doubtless be along soon