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

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

Change-Id: I726a80e09fd4c8ce2ba83dc853e40fe7b5090246
tree: 9cf0227e055567a2bdeac12e9b9e9af27cddbcc8
  1. service-t/
  2. tests/