Revert "Take all VPN underlying networks into account when migrating traffic for"

This reverts commit 2dbf6e6978f09ec21c99269d6b3220d7eea5ae19.

Reason for revert: This change has been implicated in 4-way deadlocks as seen in b/134244752.

Bug: 134244752
Change-Id: I2f1839d7776a613ca571af8a542755ddc5fc8760
Merged-In: Ibdaad3a4cbf0d8ef1ed53cfab1e454b9b878bae9
3 files changed
tree: da3372acbcbd5c9b0841d14b81e3d1bae1f9a6f7
  1. core/
  2. services/
  3. tests/