Revert "[KA11] Verify fd ownership and allocate resource for NattKeepalive"

This reverts commit 2bb85a0bc0da36e010115b5e451599f6532ff94d.

Reason for revert: Adds dependency between IpSecService and
                   ConnectivityService may lead to future deadlock
                   problems. Uses a simpler approach instead,
                   hence the solution is not needed.
                   See aosp/954040.

Change-Id: If6d537a39595cf132d3ed81d4eaac6700f5f0ab3
3 files changed
tree: 5e3b082574367ae40e1314302c3c20d8d507fc9c
  1. core/
  2. services/
  3. tests/