CrOS: Remove hibernate code

Hibernate has been deprioritized this series will remove all the
hibernate related code.

BUG=b:330187315
TEST=Builder + CQ
OBSOLETE_HISTOGRAMS=Hibernate disabled on CrOS: b/330187315


Change-Id: I984f2e4d21a32f3c60b53d12b3739c384914c45c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5368871
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Miriam Zimmerman <mutexlox@chromium.org>
Reviewed-by: Olivier Li <olivierli@chromium.org>
Commit-Queue: Brian Geffon <bgeffon@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1275202}