Stabilize peer_close_test
Stabilize peer_close_test

Cancel the timer before PeerCloseManagerTest object is deleted. One of the
crash was due to timer callback accessing the base object PeerCloseManager
as PeerCloseManagerTest was already deleted..

Change-Id: Ic6ecd29ca0c8cac99f4d71a9d5251585ffd74422
Partial-Bug: 1537933

rombie/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller