Disable symlink optimizations in the Testing ART APEX. am: a79a6eba31 am: 2efad9b51b

Original change: https://android-review.googlesource.com/c/platform/art/+/2101705

Change-Id: If873c6b66196d8d806e8d723dbacdbf30c12a1ea
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>