mb/biostar: Remove unused <stdlib.h>

Change-Id: I03d1af0858952972c92b83375a55dbda87e69f8a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33891
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/mainboard/biostar/am1ml/BiosCallOuts.c

@@ -20,7 +20,6 @@
 #include <northbridge/amd/agesa/BiosCallOuts.h>
 #include <northbridge/amd/agesa/state_machine.h>
 #include <FchPlatform.h>
-#include <stdlib.h>
 
 const BIOS_CALLOUT_STRUCT BiosCallouts[] =
 {

src/mainboard/biostar/am1ml/buildOpts.c

@@ -25,7 +25,6 @@
  *
  */
 
-#include <stdlib.h>
 #include <AGESA.h>
 
 #define INSTALL_FT3_SOCKET_SUPPORT           TRUE