net: cdc_ncm: drop redundant driver-data assignment

The driver data for the data interface has already been set by
usb_driver_claim_interface() so drop the subsequent redundant
assignment.

Note that this also avoids setting the driver data three times in case
of a combined interface.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/cdc_ncm.c

@@ -920,7 +920,6 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 		goto error2;
 	}
 
-	usb_set_intfdata(ctx->data, dev);
 	usb_set_intfdata(ctx->control, dev);
 
 	if (ctx->ether_desc) {