Remove WifiManager.getTxPacketCount

This is no longer called by CTS, and has no other
clients.

This also removes the dependency on
WifiNl80211Manager.getTxPacketCounters(), so it
will no longer need test coverage.

Bug: 150978929
Test: atest FrameworksWifiTests
Change-Id: I5497d9000d05b53bff020f6643e1ef61aee4f763
6 files changed
tree: 6fa0ab4e00b87ddbe429b07f3e1e8fc2e9210f81
  1. apex/
  2. service/
  3. PREUPLOAD.cfg