scsi: libsas: Drop BLK_DEV_BSGLIB selection

SCSI_SAS_ATTRS already selects BLK_DEV_BSGLIB in drivers/scsi/Kconfig.
Remove selection in libsas/Kconfig.

Link: https://lore.kernel.org/r/20210723084624.2596297-1-guoqing.jiang@linux.dev
Signed-off-by: Guoqing Jiang <jiangguoqing@kylinos.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/libsas/Kconfig

@@ -10,7 +10,6 @@ config SCSI_SAS_LIBSAS
 	tristate "SAS Domain Transport Attributes"
 	depends on SCSI
 	select SCSI_SAS_ATTRS
-	select BLK_DEV_BSGLIB
 	help
 	  This provides transport specific helpers for SAS drivers which
 	  use the domain device construct (like the aic94xxx).