Want to permanently remove ice maker but it disables freezer when unplugged

I want to remove the ice maker in an old Sears fridge (model 106.8619622). I did remove it but later discovered the freezer quit working. Luckily, I caught it before everything melted. Once I reinstalled it and plugged it back up, the freezer started right up. The ice maker is not being used and I would like to gain the extra space in the freezer. Is there a jumper plug or something that has to go in its place if it's unplugged?

I do appreciate the help.