[nn] cross_entropy: no batch dim support (#71055)
Summary:
Reference: https://github.com/pytorch/pytorch/issues/60585
cc albanD mruberry jbschlosser walterddr kshitij12345
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71055
Reviewed By: anjali411
Differential Revision: D33567403
Pulled By: jbschlosser
fbshipit-source-id: 4d0a311ad7419387c4547e43e533840c8b6d09d8
