s390/sclp: Fix typo in comments

Remove the repeated word 'and' from comments

Signed-off-by: Jiang Jian <[e-mail]>
Reviewed-by: Kees Cook <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Alexander Gordeev <[e-mail]>

drivers/s390/char/sclp.c

···
 /* List of queued requests. */
 static LIST_HEAD(sclp_req_queue);
 
-/* Data for read and and init requests. */
+/* Data for read and init requests. */
 static struct sclp_req sclp_read_req;
 static struct sclp_req sclp_init_req;
 static void *sclp_read_sccb;