Yes, there is a small white connector inside the throttle block that you can unplug. However, it's probably not a good idea. If you get snow packed in behind your throttle, when you fire the sled up it will run away from you.
I lost a great modded Mountain SRX because I jumped the TORS (same as TPS) on Cats. I was syncing my triple carbs and went to start the sled afterward but, somehow I had leaned on the throttle cable and knocked it out of it's recessed home while tightening down the lock nuts on the carb slides and when I fired it up it took off across the yard dragging me by my arm and ran into a tree at WOT, totaling the sled.