mb/foxconn/g41s-k/acpi_tables.c: Remove unneeded includes

Change-Id: I41e3cbb4fbdd6680c1d9d347efc35d1618233a64
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/26901
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/foxconn/g41s-k/acpi_tables.c

@@ -15,7 +15,6 @@
  * GNU General Public License for more details.
  */
 
-#include <string.h>
 #include <southbridge/intel/i82801gx/nvs.h>
 
 void acpi_create_gnvs(global_nvs_t *gnvs)