He used his disability in order to win our votes, which is an evil way to win the election.
This is a sentence which I submit for an English class assignment, but my teacher crossed out in order, which leaves the sentence to be:
He used his disability to win our votes, which is an evil way to win the election.
I asked the teacher why in order is crossed out, since it tells the purpose in this sentence structure, having in order should be right and does not affect the meaning of the sentence.
But my teacher told me it sounds odd and doesn't flow well in her opinion, and also has nothing to do with redundancy.
Must in order be omitted in this case and Why?