chipset_enable.c: Drop `_LARGEFILE64_SOURCE`

This file does not access any large files, so there's no need to define
this feature test macro.

Change-Id: I866cfa2f996eeea5846e5d9189647ad7a4a4e3e4
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/75272
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Tested-by: Nico Huber <nico.h@gmx.de>
diff --git a/chipset_enable.c b/chipset_enable.c
index 80259b5..5a0e826 100644
--- a/chipset_enable.c
+++ b/chipset_enable.c
@@ -24,8 +24,6 @@
  * Contains the chipset specific flash enables.
  */
 
-#define _LARGEFILE64_SOURCE
-
 #include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>