scsi: hisi_sas: Delete unused I_T_NEXUS_RESET_PHYUP_TIMEOUT

There is no user, so delete it.

Link: https://lore.kernel.org/r/[e-mail]
Tested-by: Yihang Li <[e-mail]>
Tested-by: Damien Le Moal <[e-mail]>
Reviewed-by: Jack Wang <[e-mail]>
Signed-off-by: John Garry <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/hisi_sas/hisi_sas_main.c

···
 	return rc;
 }
 
-#define I_T_NEXUS_RESET_PHYUP_TIMEOUT  (2 * HZ)
-
 static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device)
 {
 	struct sas_phy *local_phy = sas_get_local_phy(device);