scsi: core: Remove <scsi/scsi_request.h>

This header is empty now except for an include of <linux/blk-mq.h>, so
remove it.

Link: https://lore.kernel.org/r/20220224175552.988286-9-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/cdrom/cdrom.c

@@ -284,7 +284,6 @@
 #include <linux/times.h>
 #include <linux/uaccess.h>
 #include <scsi/scsi_common.h>
-#include <scsi/scsi_request.h>
 
 /* used to tell the module to turn on full debugging messages */
 static bool debug;

drivers/scsi/scsi_transport_sas.c

@@ -34,7 +34,6 @@
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_request.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_transport.h>

include/linux/bsg-lib.h

@@ -10,7 +10,6 @@
 #define _BLK_BSG_
 
 #include <linux/blkdev.h>
-#include <scsi/scsi_request.h>
 
 struct bsg_job;
 struct request;

include/scsi/scsi_cmnd.h

@@ -10,7 +10,6 @@
 #include <linux/timer.h>
 #include <linux/scatterlist.h>
 #include <scsi/scsi_device.h>
-#include <scsi/scsi_request.h>
 
 struct Scsi_Host;
 struct scsi_driver;