Delete the EthernetDataTracker.

Code search says these are the only two files that use it. The
tracker will be resurrected in a slightly different form in
frameworks/opt/net/ethernet.

Bug: 14993642
Bug: 14981801
Change-Id: I2477668ca78dfe46661dda1d97c7f786fd7eba35
1 file changed
tree: cd19584a7dd2bceab3f1754749993bb4a1261227
  1. core/
  2. services/
  3. tests/