Cleanup score and remove other deprecated scripts. (#1944)
Summary:
Cleanup score and remove other deprecated scripts.
The old V0, V1, and V2 scores are still available at the v0, v1, and v2 branches respectively.
Pull Request resolved: https://github.com/pytorch/benchmark/pull/1944
Reviewed By: davidberard98
Differential Revision: D49740168
Pulled By: xuzhao9
fbshipit-source-id: e056540ee4e79267d8a4b1ba309cc33a881da1ce
