scripts: Android.bp: trusty_vm_genrule not necessary am: 8584b691db

Original change: https://android-review.googlesource.com/c/trusty/vendor/google/aosp/+/3506915

Change-Id: I1aa8e151a1409404809b8f09dd3363c485e10627
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>