vendorcode/amd: Remove duplicate assignment

Change-Id: I8a39e862176cd1c8a14424eb6d2bf7edabd36adb
Found-by: Silvio Cesare, https://twitter.com/silviocesare/status/1268784333029965824
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42101
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/vendorcode/amd/agesa/f16kb/Proc/CPU/Feature/cpuSrat.c

@@ -226,7 +226,6 @@ GetAcpiSratMain (
 
   // Get Node count
   NodeCount = 1;
-  NodeCount = 1;
 
   // The worst-case buffer size to request is for the SRAT table header, one
   // entree for special region (base 640k block), two memory