spd.c: Remove dead assignment

Found-by: scan-build 7.0.1-8
Change-Id: Ibc0eacf9bbc5a3055b7cc366b1782b7706f03560
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/memtest86plus/+/34408
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/spd.c b/spd.c
index d30e3e2..053db3c 100644
--- a/spd.c
+++ b/spd.c
@@ -76,8 +76,6 @@
 	unsigned long x;
 	int result;
 
-	result = pci_conf_read(0, smbdev, smbfun, 0x08, 1, &x);
-
 	if (x < 0x40) {
 		// SB600/700
 		result = pci_conf_read(0, smbdev, smbfun, 0x90, 2, &x);