[FX] Remove extraneous newlines at end of code (#50117)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/50117
Test Plan: Imported from OSS
Reviewed By: ansley
Differential Revision: D25791847
Pulled By: jamesr66a
fbshipit-source-id: 9c0b296e117e6bcf69ed9624ad0b243fa3db0f76
