Remove hidden connectivity methods usage in ethernet test am: 8cc30c0ad1 am: 2ac08bb9f1 am: 80ccb784c8

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/1675425

Change-Id: Ibd161192f0c1f681b5442dbf2bee7f60d0dd802b
tree: 90cc2af526444be1f1732cc38c97ce70753862ba
  1. service-t/
  2. tests/