PCI: hotplug: acpiphp: Remove unused variable from acpiphp

Remove unused variable from acpiphp.

Signed-off-by: Alex Chiang <[e-mail]>
Signed-off-by: Matthew Wilcox <[e-mail]>
Signed-off-by: Kristen Carlson Accardi <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/pci/hotplug/acpiphp.h

···
 	u8		device;		/* pci device# */
 
 	u32		sun;		/* ACPI _SUN (slot unique number) */
-	u32		slotno;		/* slot number relative to bridge */
 	u32		flags;		/* see below */
 };