Revert "Change network management listener to outcome receiver" am: dd88b843c9

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/2030085

Change-Id: Ie53348131335b2bc472b4fa26f5172bdb98b3248
tree: 0aeb15ec0c54163cbe091fa00ec6be365d8e2d54
  1. service-t/
  2. tests/