net: openvswitch: Remove redundant if statements

The 'if (dev)' statement already move into dev_{put , hold}, so remove
redundant if statements.

Signed-off-by: Xu Wang <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/openvswitch/vport-netdev.c

···
 {
 	struct vport *vport = container_of(rcu, struct vport, rcu);
 
-	if (vport->dev)
-		dev_put(vport->dev);
+	dev_put(vport->dev);
 	ovs_vport_free(vport);
 }