can: ucan: remove unused ucan_priv::intf

Field intf of struct ucan_priv is set but never used. Remove it.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221208081142.16936-2-mailhol.vincent@wanadoo.frSigned-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/usb/ucan.c

@@ -277,7 +277,6 @@ struct ucan_priv {
 
 	/* linux USB device structures */
 	struct usb_device *udev;
-	struct usb_interface *intf;
 	struct net_device *netdev;
 
 	/* lock for can->echo_skb (used around
@@ -1501,7 +1500,6 @@ static int ucan_probe(struct usb_interface *intf,
 
 	/* initialize data */
 	up->udev = udev;
-	up->intf = intf;
 	up->netdev = netdev;
 	up->intf_index = iface_desc->desc.bInterfaceNumber;
 	up->in_ep_addr = in_ep_addr;