extract final two libraries out of //c10/util (#70856)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/70856
ghstack-source-id: 147302541
Test Plan: Relying on CI
Reviewed By: malfet
Differential Revision: D33329555
fbshipit-source-id: 1e7884b2df1c294a8fe9e7f3664a139487d27978
(cherry picked from commit 643cc436ec416ea42a73ec2e376b1d5e747192ac)
