[nznog] Clean up of WIX peers

There are around 100 WIX 'peers' who have not set up a peering session for a very long time and the IP address the foreign peer is supposed to connect from is not responding to ping or arp requests. We are putting these peers into an inactive state so that they don't appear in the config of the route servers. Anyone who wants to reconnect is free to contact us at tech(a)citylink.co.nz and we'll help you get things sorted out. andy (Wearing a CityLink hat!)