[CODEOWNERS] Remove @neginraoof (#67631)
Summary:
She no longer works on the ONNX exporter
Pull Request resolved: https://github.com/pytorch/pytorch/pull/67631
Reviewed By: malfet
Differential Revision: D32070435
Pulled By: msaroufim
fbshipit-source-id: d741a15bd7a916745aa7f2f3d9bb1dc699553900
