acyclic: remove unused unistd.h #include

Gitlab: #2204

diff --git a/cmd/tools/acyclic.c b/cmd/tools/acyclic.c
index a38933add4815ddb4fa701db7d6a2d3ba85fefd2..109bb3ac7b796648e539779ac2545ffeccffbeef 100644 (file)
--- a/cmd/tools/acyclic.c
+++ b/cmd/tools/acyclic.c
@@ -14,11 +14,6 @@
  * Updated by Emden Gansner
  */
 
-#include "config.h"
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
 #include <stdbool.h>
 #include <stdio.h>