Revert "Block incoming non-VPN packets to apps under fully-routed VPN"

This reverts commit 477302706462ada471e0efbfab16994214ae9d41.
This change does not have any topic: not reverting the other 2 commits in the original topic.

Reason for revert: broke FrameworksNetTests presubmit: b/130397860

Change-Id: Iff41d9fe97fafea44680c8d67d1ce19277548cc0
7 files changed
tree: 62d92f98b5a0f19e909fc92b4064593bfed60479
  1. core/
  2. services/
  3. tests/