pcihp: remove unused AcpiPciHpPciStatus.device_present field

Remove now unused 'device_present' field wich was obsoleted by
patch "pcihp: reduce number of device check events"
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

include/hw/acpi/pcihp.h

@@ -35,7 +35,6 @@ typedef struct AcpiPciHpPciStatus {
     uint32_t up;
     uint32_t down;
     uint32_t hotplug_enable;
-    uint32_t device_present;
 } AcpiPciHpPciStatus;
 
 #define ACPI_PCIHP_PROP_BSEL "acpi-pcihp-bsel"