Replace runWithScissors with a custom implementation. am: e1a82896b6 am: 95662ebd1c

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

Change-Id: I0c26ce493100507a05c0002049975404fa1fb3c9
tree: 9cf0227e055567a2bdeac12e9b9e9af27cddbcc8
  1. service-t/
  2. tests/