{src,util}: Remove duplicated includes

Change-Id: Id09cec6b2aae58b131b208e96fec539d068ff68a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32566
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/northbridge/intel/sandybridge/raminit_common.c

@@ -23,7 +23,7 @@
 #include <northbridge/intel/sandybridge/chip.h>
 #include <device/pci_def.h>
 #include <delay.h>
-#include <arch/cpu.h>
+
 #include "raminit_native.h"
 #include "raminit_common.h"
 #include "sandybridge.h"

util/cbmem/cbmem.c

@@ -19,7 +19,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <inttypes.h>
 #include <getopt.h>
 #include <dirent.h>
 #include <errno.h>

util/ectool/ectool.c

@@ -22,7 +22,6 @@
 #include <sys/io.h>
 #endif
 #include <ec.h>
-#include <stdlib.h>
 
 #if defined __NetBSD__ || defined __OpenBSD__
 

util/romcc/romcc.c

@@ -16,7 +16,6 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <stdio.h>
 #include <string.h>
 #include <limits.h>
 #include <locale.h>