unflatten: remove unused unistd.h #include

Gitlab: #2204

diff --git a/cmd/tools/unflatten.c b/cmd/tools/unflatten.c
index d0548c97b0eac9e6139e0ed7866272f8831e1cdf..ff5b6930134181f1f0801dd5910e034574b300c2 100644 (file)
--- a/cmd/tools/unflatten.c
+++ b/cmd/tools/unflatten.c
@@ -13,15 +13,11 @@
  * Written by Stephen North
  * Updated by Emden Gansner
  */
-#include "config.h"
 
 #include    <stdbool.h>
 #include    <stdio.h>
 #include    <stdlib.h>
 #include    <string.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
 #include    <cgraph/cgraph.h>
 #include    <cgraph/exit.h>
 #include    <ingraphs/ingraphs.h>