Sparse: Remove dispatch in parallel region (#60598)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/60598
Ref #56794
Test Plan: Imported from OSS
Reviewed By: jbschlosser
Differential Revision: D29446192
Pulled By: ngimel
fbshipit-source-id: 1a11f3aa847e4ce83fc6f50cee362b7d0cb61eae
