[VOL-2573] Delete all logical ports on OLT Delete

Change-Id: Id809e176fe3a902aabea8cbce573fbf9710d9b10
diff --git a/rw_core/core/device_state_transitions.go b/rw_core/core/device_state_transitions.go
index 0a6264b..9b4acf3 100644
--- a/rw_core/core/device_state_transitions.go
+++ b/rw_core/core/device_state_transitions.go
@@ -90,7 +90,7 @@
 			deviceType:    parent,
 			previousState: DeviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
 			currentState:  DeviceState{Admin: voltha.AdminState_DELETED, Connection: voltha.ConnectStatus_UNKNOWN, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.DisableAllChildDevices, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.RunPostDeviceDelete}})
+			handlers:      []TransitionHandler{dMgr.DisableAllChildDevices, dMgr.DeleteAllUNILogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.RunPostDeviceDelete}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
 			deviceType:    child,