Merge "Remove unused Android.mk" into main am: abc72175e8

Original change: https://android-review.googlesource.com/c/platform/prebuilts/runtime/+/2854377

Change-Id: Ib8b8807740e5be927359bb0d9b0ce5353973dd09
Signed-off-by: Automerger Merge Worker <[email protected]>