Clean up the leaked files in the root directory (#792)
Summary:
Fixes https://github.com/pytorch/benchmark/issues/186
Pull Request resolved: https://github.com/pytorch/benchmark/pull/792
Reviewed By: jansel
Differential Revision: D34869263
Pulled By: xuzhao9
fbshipit-source-id: 6f4dd8a8a41c94d00971fbccab456261a3ad11b2
