Removing unused int network score from eth factory am: 68c4a5108b am: 21bbe6f4a5

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/1891859

Change-Id: I1934112b51a2c4002fbd2c29a31562f2c1ae3a3f
tree: 7243bfb213075e82582dd31201e7e7b007b52fec
  1. service-t/
  2. tests/