t/helper/test-chmtime: don't include "utime.h"

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>

Author: szeder

t/helper/test-chmtime.c

@@ -37,7 +37,6 @@
  *
  */
 #include "test-tool.h"
-#include <utime.h>
 
 static const char usage_str[] =
 	"(-v|--verbose|-g|--get) (+|=|=+|=-|-)<seconds> <file>...";