Replace runWithScissors with a custom implementation. am: e1a82896b6 am: 95662ebd1c am: 8dae35259a am: 78d25211a0

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/1955878

Change-Id: Ie6fdeda967d35765c6692f09364a839f5cb0e1bf
tree: 9cf0227e055567a2bdeac12e9b9e9af27cddbcc8
  1. service-t/
  2. tests/