Back out "[shard] make ShardedTensor a torch.Tensor subclass" (#78796)
Summary:
Original commit changeset: f3ce270bad56
Original Phabricator Diff: D36569064
Test Plan: wait for sandcastle and doing additional checks
Reviewed By: guangyuwang
Differential Revision: D36890625
Pull Request resolved: https://github.com/pytorch/pytorch/pull/78796
Approved by: https://github.com/pbelevich
