Don't reevaluate disconnected networks

This serves no purpose and adds several log messages every time a
network disconnects.  The extra log messages contribute to
NetworkMonitor's chatty-ness and towards it getting muted.

Bug:21480101
Change-Id: I372f9939c534f77b052a15fdb2cd5288d19ddbab
1 file changed
tree: 5b12511b07d3b07b9f40d51f4440115348e9ed10
  1. core/
  2. services/
  3. tests/