[VOL-2865] : code changes to support uniform state transition for OLT delete

Change-Id: I2f829c23bdb39e2d91f00a849b6b965a0df9a54e
diff --git a/rw_core/core/device/state_transitions.go b/rw_core/core/device/state_transitions.go
index f7be154..15f4c1e 100644
--- a/rw_core/core/device/state_transitions.go
+++ b/rw_core/core/device/state_transitions.go
@@ -131,19 +131,19 @@
 			deviceType:    parent,
 			previousState: deviceState{Admin: voltha.AdminState_UNKNOWN, 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.DeleteAllUNILogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteAllLogicalPorts, dMgr.DeleteLogicalDevice, dMgr.RunPostDeviceDelete}})
+			handlers:      []TransitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.RunPostDeviceDelete}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
 			deviceType:    parent,
 			previousState: deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_ACTIVE},
 			currentState:  deviceState{Admin: voltha.AdminState_ENABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteLogicalDevice, dMgr.DeleteAllChildDevices, dMgr.DeleteAllDeviceFlows}})
+			handlers:      []TransitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.DeleteAllDeviceFlows}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
 			deviceType:    parent,
 			previousState: deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_REACHABLE, Operational: voltha.OperStatus_UNKNOWN},
 			currentState:  deviceState{Admin: voltha.AdminState_DISABLED, Connection: voltha.ConnectStatus_UNREACHABLE, Operational: voltha.OperStatus_UNKNOWN},
-			handlers:      []TransitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteLogicalDevice, dMgr.DeleteAllChildDevices, dMgr.DeleteAllDeviceFlows}})
+			handlers:      []TransitionHandler{dMgr.DeleteAllLogicalPorts, dMgr.DeleteAllChildDevices, dMgr.DeleteLogicalDevice, dMgr.DeleteAllDeviceFlows}})
 	transitionMap.transitions = append(transitionMap.transitions,
 		Transition{
 			deviceType:    parent,