scsi: message: fusion: Remove redundant variable dmp

Variable dmp is being assigned a value that is never read, the variable is
redundant and can be removed.

Cleans up clang scan build warning:
drivers/message/fusion/mptbase.c:6667:39: warning: Although
the value stored to 'dmp' is used in the enclosing expression,
the value is never actually read from 'dmp' [deadcode.DeadStores]

Link: https://lore.kernel.org/r/20220318003927.81471-1-colin.i.king@gmail.com
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/message/fusion/mptbase.c

@@ -6658,13 +6658,13 @@ static int mpt_summary_proc_show(struct seq_file *m, void *v)
 static int mpt_version_proc_show(struct seq_file *m, void *v)
 {
 	u8	 cb_idx;
-	int	 scsi, fc, sas, lan, ctl, targ, dmp;
+	int	 scsi, fc, sas, lan, ctl, targ;
 	char	*drvname;
 
 	seq_printf(m, "%s-%s\n", "mptlinux", MPT_LINUX_VERSION_COMMON);
 	seq_printf(m, "  Fusion MPT base driver\n");
 
-	scsi = fc = sas = lan = ctl = targ = dmp = 0;
+	scsi = fc = sas = lan = ctl = targ = 0;
 	for (cb_idx = MPT_MAX_PROTOCOL_DRIVERS-1; cb_idx; cb_idx--) {
 		drvname = NULL;
 		if (MptCallbacks[cb_idx]) {