Revert "Merge "Add netd support for configuring IPv6 optimistic mode." into lmp-mr1-dev"

This is to undo ag/569594.

This reverts commit 828f8b88c78e7d7c31b098768df403e4596a91d4, reversing
changes made to ac7fefcf3d90cf856b0f1664207d056ed1dd4725.

Bug: 18609055
Bug: 17769720
Change-Id: I120745d9d01d731174f477dff9b463dede8523d7
2 files changed
tree: eefa7145b1e103f8e1776d786bc5eab81bb416ef
  1. client/
  2. include/
  3. server/