Remove NATT keepalive from IpSecTransform

The code is unused, and based on ConnectivityManager#startNattKeepalive,
which is deprecated.

Bug: 174436414
Test: atest FrameworksNetTests
Change-Id: I08c6c1baec668a304d971bb6f2328891a5611e6a
1 file changed
tree: 00d81ffd8d20f416c580c4145f9851cfeeb7d655
  1. core/
  2. services/
  3. wifi/