Fix idle timer rule leakage

Idle timer rule is not cleared as expected if there is a
default network replacement.

Bug:37080406
Test: 1.run frameworks-net
      2.check iptables rule with default network replacement

Change-Id: I6bd29d79e4ca3e8de4b867c4fcb5f81d02ba6de4
2 files changed
tree: 589a6d413ecad0c549d29b0196ad60abd3069a33
  1. core/
  2. services/
  3. tests/