pvmfw: Remove unnecessary flush of the guest DT am: 99a3d1f212

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/23107374

Change-Id: I27779024ade95412c8ec886daaa3648317cdc717
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>