[6/n][torch/elastic][upstream] Move torchelastic/distributed/api to torch/distributed/elastic/launchers/api (#55471)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/55471
Move torchelastic/distributed/api to torch/distributed/elastic/launchers/api
Test Plan:
buck test mode/dev-nosan //pytorch/elastic/torchelastic/...
buck test mode/dev-nosan //caffe2/test/distributed/elastic/agent/server/test/...
SyncSGD: tsm_aivanou-SparseNNApplication_432fc009
f263322216
Reviewed By: wilson100hong
Differential Revision: D27614353
fbshipit-source-id: a3b58fac2ebf803b8da5852ae2be0851b1cca695
