So, you want to remove the kill switch all together? I'd not recommend doing this as a kill switch is really there for a reason; not simply to inconvenience riders and complicate wiring. But it's your bike and what the hell do i know? I've only got 4 posts now.
So, if the wiring is at least similar to the stock setup, you should have a black wire and a black+white wire coming in to the kill switch. The black+white one goes to the coils, and the black one goes to the rest of the harness. so, if you just connect these together, it'll act as though the kill switch is always in the "on" position, and now the only thing controlling the ignition is the key.
Hopefully someone will correct me if i'm wrong. but i think that should do it.