disas/nanomips: Remove headers already included by "qemu/osdep.h"

Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221101114458.25756-5-philmd@linaro.org>

disas/nanomips.c

@@ -30,10 +30,6 @@
 #include "qemu/osdep.h"
 #include "disas/dis-asm.h"
 
-#include <string.h>
-#include <stdio.h>
-#include <stdarg.h>
-
 typedef int64_t int64;
 typedef uint64_t uint64;
 typedef uint32_t uint32;