staging: fsl-dpaa2: ethsw: Remove unused port_priv variable

After 1b8b589d ("staging: fsl-dpaa2: ethsw: Remove getting
PORT_BRIDGE_FLAGS") we are not accessing any driver private data
anymore, remove port_priv which is unused.

Fixes: 1b8b589d ("staging: fsl-dpaa2: ethsw: Remove getting PORT_BRIDGE_FLAGS")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/staging/fsl-dpaa2/ethsw/ethsw.c

@@ -643,8 +643,6 @@ static void ethsw_teardown_irqs(struct fsl_mc_device *sw_dev)
 static int swdev_port_attr_get(struct net_device *netdev,
 			       struct switchdev_attr *attr)
 {
-	struct ethsw_port_priv *port_priv = netdev_priv(netdev);
-
 	switch (attr->id) {
 	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT:
 		attr->u.brport_flags_support = BR_LEARNING | BR_FLOOD;