It could be to open the choke? You could just leave it unplugged.Can I just bypass these two wires?
Cars with carbs have a heater in the choke to make it open quicker. I have no idea if that is what you have.
Could also be to heat the fuel so it atomizes better, or maybe even a safety valve of some sort that shuts of fuel when it's off.
I would need to see it or the service manual to know but just try it unplugged.