use "glibc errno" trick not only for ash, but for entire busybox

(add/remove: 1/1 grow/shrink: 37/37 up/down: 139/-228)        Total: -89 bytes

1 files changed, 0 insertions, 5 deletions

diff --git a/util-linux/setarch.c b/util-linux/setarch.c
index f6433d6ba..2fb47f9e8 100644
--- a/util-linux/setarch.c
+++ b/util-linux/setarch.c
@@ -7,11 +7,6 @@
  * Licensed under GPL v2 or later, see file License for details.
 */
 
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <stdio.h>
 #include <sys/personality.h>
 
 #include "libbb.h"