scsi: core: Don't export scsi_device_from_queue()

This function is only used by code built into scsi_mod.ko.

Link: https://lore.kernel.org/r/20201005084130.143273-2-hch@lst.de
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/scsi_lib.c

@@ -1968,7 +1968,6 @@ struct scsi_device *scsi_device_from_queue(struct request_queue *q)
 
 	return sdev;
 }
-EXPORT_SYMBOL_GPL(scsi_device_from_queue);
 
 /**
  * scsi_block_requests - Utility function used by low-level drivers to prevent