Remove hidden connectivity methods usage in ethernet test

Bug: 182859030
Test: atest EthernetTrackerTest
Test: 1. remove framework-connectivity.impl from framework bp
      2. cd frameworks/opt/net/ethernet/tests ; mm
Change-Id: Ifaeebfca75dc77eec30dd722ddb3166610795b26
1 file changed
tree: 34968195efc6f71973d6bf43e4ef3897bf6e53bf
  1. service-t/
  2. tests/