Merge "Revert "libsnapshot: set thread priority"" into main am: 35bd4d8f am: 283b2037

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3128361



Change-Id: Ibae24a7574c0d77194596128ab053c5000c4ad11
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>