pvmfw: virtio: Clean up hal.rs am: 5c94426d39

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/23110877

Change-Id: Idb36107908b50209d33d0f1308d19fb4719cedbf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>