Revert "run-test: Convert from bash to python." am: d08df34417 am: 92a5df7188 am: aa485163b6 am: f519ec4cce

Original change: https://android-review.googlesource.com/c/platform/art/+/2241654

Change-Id: Ib6d4653476dc6e54e9f5d1a35e2c53264903fe81
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>