PCMCIA: stop duplicating pci_irq in soc_pcmcia_socket

skt->irq is a mere duplication of pcmcia_socket's pci_irq member.
Get rid of it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

drivers/pcmcia/soc_common.h

@@ -31,7 +31,6 @@ struct soc_pcmcia_socket {
 	 * Info from low level handler
 	 */
 	unsigned int		nr;
-	unsigned int		irq;
 
 	/*
 	 * Core PCMCIA state