scsi: scsi_debug: Remove dead code

The ramdisk rwlocks are not used anymore.

Fixes: 87c715d ("scsi: scsi_debug: Add per_host_store option")
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Link: https://lore.kernel.org/r/20230628150638.53218-1-mlombard@redhat.com
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: maurizio-lombardi

drivers/scsi/scsi_debug.c

@@ -841,11 +841,6 @@ static int sdeb_zbc_nr_conv = DEF_ZBC_NR_CONV_ZONES;
 static int submit_queues = DEF_SUBMIT_QUEUES;  /* > 1 for multi-queue (mq) */
 static int poll_queues; /* iouring iopoll interface.*/
 
-static DEFINE_RWLOCK(atomic_rw);
-static DEFINE_RWLOCK(atomic_rw2);
-
-static rwlock_t *ramdisk_lck_a[2];
-
 static char sdebug_proc_name[] = MY_NAME;
 static const char *my_name = MY_NAME;
 
@@ -6818,9 +6813,6 @@ static int __init scsi_debug_init(void)
 	int k, ret, hosts_to_add;
 	int idx = -1;
 
-	ramdisk_lck_a[0] = &atomic_rw;
-	ramdisk_lck_a[1] = &atomic_rw2;
-
 	if (sdebug_ndelay >= 1000 * 1000 * 1000) {
 		pr_warn("ndelay must be less than 1 second, ignored\n");
 		sdebug_ndelay = 0;