Fixed bug which prevented a bidirectional link from being removed from the adjacency map when one direction of the link went down.
Fixed bug which prevented a bidirectional link from being removed from the adjacency map when one direction of the link went down.

kvasukib/groupflow_simulator,kvasukib/groupflow_simulator,alexcraig/GroupFlow,kvasukib/groupflow_simulator,alexcraig/GroupFlow,alexcraig/GroupFlow