Remove vts_kernel_tests target for ltp am: 165d3ff30f

Original change: https://android-review.googlesource.com/c/platform/tools/asuite/+/3286455

Change-Id: I5041aed25e3885cbacd717976eb8819b77ccde27
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>