skd: remove SCSI subsystem specific includes

This is not a SCSI host driver so remove SCSI subsystem specific
includes.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/block/skd_main.c

@@ -42,9 +42,6 @@
 #include <linux/wait.h>
 #include <linux/uio.h>
 #include <scsi/scsi.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_tcq.h>
-#include <scsi/scsi_cmnd.h>
 #include <scsi/sg.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>