mb/google/fatcat: Remove unused <stdio.h>

Change-Id: Icc83efdd673390794fc443531ae7cc6834076383
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84809
Reviewed-by: Nicholas Chin <nic.c3.14@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>

src/mainboard/google/fatcat/mainboard.c

@@ -7,7 +7,6 @@
 #include <device/device.h>
 #include <ec/ec.h>
 #include <soc/ramstage.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <vendorcode/google/chromeos/chromeos.h>