pytorch

84d892b6 - Remove DistributedDataParallelCPU as DDP now supports CPU models (#22864)

Remove DistributedDataParallelCPU as DDP now supports CPU models (#22864) Summary: cc ailzhang aazzolini yifuwang Pull Request resolved: https://github.com/pytorch/pytorch/pull/22864 Differential Revision: D16358011 Pulled By: mrshenli fbshipit-source-id: 8db2dc035dea03f07a32c749e754f625fda1bf28