Revert new ordering for route retractions.
Revert new ordering for route retractions.

That's not the issue -- the issue is with the kernel dropping routes when
we loose an IP address.

rolling back:

Fri Mar  4 21:26:15 CET 2011  Juliusz Chroboczek <jch@pps.jussieu.fr>
  * Fix ordering of netlink messages when making a route unreachable.

  This should fix:

    netlink_read: File exists
    netlink_read: No such process

    M ./kernel_netlink.c -1 +1

sudomesh/babeld,dtaht/babeld-shortrtt-metrics,jech/babeld,Gwendocg/babeldToS,wlanslovenija/babeld,woniullb/babeld,jech/babeld,wlanslovenija/babeld,tcatm/babeld,Drooids/babeld,Gwendocg/babeldToS,boutier/babeld