When I hear "range" I think of stove/oven with a cord so that you can pull it out. I don't think (ain't gonna look it up) that you are allowed to remove that cord, as this would be a violation of the manufactures specs.
I have never seen a range with a factory installed cord. They are installed in the field.
Is the cord and receptacle required? Not necessarily per the NEC, but a) disconnecting means is required, and that is one of the easiest ways to do it, and, b) it might be part of the manufacturer's instructions.
John from Baltimore
One Day at a Time
"Experience is what you get when you were expecting something else" "The bitterness of low quality lingers long after the sweetness of low cost is forgotten"