scsi: libsas: remove the exporting of sas_wait_eh

The function sas_wait_eh is declared static and marked EXPORT_SYMBOL, which
is at best an odd combination. Because the function is not used outside of
the drivers/scsi/libsas/sas_scsi_host.c file it is defined in, this commit
removes the EXPORT_SYMBOL() marking.
Signed-off-by: Denis Efremov <efremov@linux.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/libsas/sas_scsi_host.c

@@ -414,7 +414,6 @@ static void sas_wait_eh(struct domain_device *dev)
 		goto retry;
 	}
 }
-EXPORT_SYMBOL(sas_wait_eh);
 
 static int sas_queue_reset(struct domain_device *dev, int reset_type,
 			   u64 lun, int wait)