pytorch

71da1144 - Revert D30426527: Adding DataLoader2 class as future replacement of DataLoader

Revert D30426527: Adding DataLoader2 class as future replacement of DataLoader Test Plan: revert-hammer Differential Revision: D30426527 (https://github.com/pytorch/pytorch/commit/5a7133b87fe2fd7d025d36855ed4cc06539a9299) Original commit changeset: e5905d3364c4 fbshipit-source-id: 794d8a4e9256ccff8cf894aee10eff6adc30d502