Revert "Batch Norm Consolidation (#116092)"
This reverts commit 7b4f70eda519ccd7f28de17689edd43c52743bc9.
Reverted https://github.com/pytorch/pytorch/pull/116092 on behalf of https://github.com/osalpekar due to Causes build failure in //caffe2:aten-hip (AMD build) target. See [D54707318](https://www.internalfb.com/diff/D54707318) for more details, may require internal build system changes to resolve. ([comment](https://github.com/pytorch/pytorch/pull/116092#issuecomment-1989542965))
