Merge "Revert "Grant CAP_SYS_NICE for virtmgr/crosvm"" into main am: 6ec778731d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2956168

Change-Id: Id4582ce74e8a6b529419174c56b1d29cd875f009
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>