While this feature is nifty, it doesn't really work with most mobile
wireless drivers. Wireless drivers decide to go in "weird" state when
the mac address changes at runtime.
I remember talking to someone in IRC about this and getting it disabled.
not sure how this ended up here.
See: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1681513
This option is not working with most of the wireless drivers normally.
For example e.g it doesn't really play nice with one of my laptop's
wireless driver.
