util: drop missing.h from util.h

src/shared/serialize.c

@@ -6,6 +6,7 @@
 #include "env-util.h"
 #include "escape.h"
 #include "fileio.h"
+#include "missing.h"
 #include "parse-util.h"
 #include "process-util.h"
 #include "serialize.h"

src/shared/sleep-config.c

@@ -9,6 +9,7 @@
 #include <stddef.h>
 #include <stdio.h>
 #include <string.h>
+#include <sys/ioctl.h>
 #include <sys/utsname.h>
 #include <syslog.h>
 #include <unistd.h>