Do not include 'zutil.h': we do not need it and documentation says that it
should not be used by applications.

* buckets/deflate_buckets.c
  (): Remove #include <zutil.h>


git-svn-id: https://svn.apache.org/repos/asf/serf/trunk@1764932 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/buckets/deflate_buckets.c b/buckets/deflate_buckets.c
index cd41c0c..eefb158 100644
--- a/buckets/deflate_buckets.c
+++ b/buckets/deflate_buckets.c
@@ -24,11 +24,6 @@
 
 #include <zlib.h>
 
-/* This conditional isn't defined anywhere yet. */
-#ifdef HAVE_ZUTIL_H
-#include <zutil.h>
-#endif
-
 #include "serf.h"
 #include "serf_bucket_util.h"
 #include "serf_private.h"