This is for backwards compatibility. Apps targeting V or lower
SDK should not see Tethering network agent.
This restriction is still disabled to maintain no-op in this
change. Will be enabled when introducing ConnectivityService
part in the subsequent change.
Test: atest CtsNetTestCases:android.net.NetworkCapabilitiesTest \
ConnectivityCoverageTests:android.net.connectivity.com.android.server \
--update-device
Bug: 349487600
Change-Id: I99405ab62e82ff4b7fcebffd3a1a31ec6d8962a9
f3ae766e8e