Delete BGP Peer Flap count UVE when the peer is destroyed
Delete BGP Peer Flap count UVE when the peer is destroyed

Change-Id: I6e4e5646fce4e48552d63b926ae65a2b7bf7421f
Partial-Bug: #1576437

codilime/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,codilime/contrail-controller