staging: unisys: visornic: remove poll_for_irq prototype

Remove poll_for_irq prototype not needed.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visornic/visornic_main.c

@@ -141,8 +141,6 @@ struct visornic_devdata {
 	struct uiscmdrsp cmdrsp[SIZEOF_CMDRSP];
 };
 
-static void poll_for_irq(unsigned long v);
-
 /**
  *	visor_copy_fragsinfo_from_skb(
  *	@skb_in: skbuff that we are pulling the frags from