src/include: Remove unused 'include <stdint.h>'

Change-Id: I407474eac9f44f04036af7182714db7fdc4035f1
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43369
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/include/bootstate.h

@@ -4,7 +4,6 @@
 
 #include <string.h>
 #include <stddef.h>
-#include <stdint.h>
 /* Only declare main() when in ramstage. */
 #if ENV_RAMSTAGE
 #include <main_decl.h>

src/include/fit_payload.h

@@ -4,7 +4,6 @@
 #define __FIT_PAYLOAD_H_
 
 #include <program_loading.h>
-#include <stdint.h>
 
 void fit_payload(struct prog *payload);
 

src/include/list.h

@@ -5,7 +5,6 @@
 #define __LIST_H__
 
 #include <stddef.h>
-#include <stdint.h>
 
 struct list_node {
 	struct list_node *next;

src/include/stdbool.h

@@ -3,9 +3,6 @@
 #ifndef __STDBOOL_H__
 #define __STDBOOL_H__
 
-#include <stdint.h>
-
-
 typedef _Bool   bool;
 #define true    1
 #define false   0