staging: usbip: removed unused definitions from header

Removed remnants of old function definitions which have since been
removed in earlier cleanup work.

Signed-off-by: Bart Westgeest <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/usbip/stub_dev.c

···
 			spin_unlock(&sdev->ud.lock);
 			return -EINVAL;
 		}
-#if 0
-		setnodelay(socket);
-		setkeepalive(socket);
-		setreuse(socket);
-#endif
 		sdev->ud.tcp_socket = socket;
 
 		spin_unlock(&sdev->ud.lock);

drivers/staging/usbip/usbip_common.h

···
 	} eh_ops;
 };
 
-#if 0
-int usbip_sendmsg(struct socket *, struct msghdr *, int);
-int set_sockaddr(struct socket *socket, struct sockaddr_storage *ss);
-int setnodelay(struct socket *);
-int setquickack(struct socket *);
-int setkeepalive(struct socket *socket);
-void setreuse(struct socket *);
-#endif
-
 /* usbip_common.c */
 void usbip_dump_urb(struct urb *purb);
 void usbip_dump_header(struct usbip_header *pdu);
···
 {
 	struct usb_device *udev = interface_to_usbdev(interface);
 	return udev->devnum;
-}
-
-static inline int interface_to_infnum(struct usb_interface *interface)
-{
-	return interface->cur_altsetting->desc.bInterfaceNumber;
 }
 
 #endif /* __USBIP_COMMON_H */