USB: cdc_ether: remove unneeded check

We already verified that "dev->udev->actconfig->extralen" was non-zero
so "len" is non-zero here as well.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/cdc_ether.c

@@ -99,9 +99,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 		 */
 		buf = dev->udev->actconfig->extra;
 		len = dev->udev->actconfig->extralen;
-		if (len)
-			dev_dbg(&intf->dev,
-				"CDC descriptors on config\n");
+		dev_dbg(&intf->dev, "CDC descriptors on config\n");
 	}
 
 	/* Maybe CDC descriptors are after the endpoint?  This bug has