Remove unused Android.mk file am: 8c6bfebb57

Original change: https://android-review.googlesource.com/c/platform/test/catbox/+/2854390

Change-Id: Ie6678df42ac846e3b10f3012145ead6ee6dc4d32
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 87e77861cb391a1cf29e2abf8e760ec41e50719c
  1. prebuilts/
  2. report/
  3. runner/
  4. target_preparers/
  5. tools/
  6. OWNERS