[S390] cio: Remove remains of _ccw_device_get_device_number().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/cio/device_ops.c

@@ -635,12 +635,6 @@ _ccw_device_get_subchannel_number(struct ccw_device *cdev)
 	return cdev->private->schid.sch_no;
 }
 
-int
-_ccw_device_get_device_number(struct ccw_device *cdev)
-{
-	return cdev->private->dev_id.devno;
-}
-
 
 MODULE_LICENSE("GPL");
 EXPORT_SYMBOL(ccw_device_set_options_mask);
@@ -658,6 +652,5 @@ EXPORT_SYMBOL(ccw_device_get_path_mask);
 EXPORT_SYMBOL(read_conf_data);
 EXPORT_SYMBOL(read_dev_chars);
 EXPORT_SYMBOL(_ccw_device_get_subchannel_number);
-EXPORT_SYMBOL(_ccw_device_get_device_number);
 EXPORT_SYMBOL_GPL(ccw_device_get_chp_desc);
 EXPORT_SYMBOL_GPL(read_conf_data_lpm);