Configure: remove outdated and unused patch.zlib.h.
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
diff --git a/auto/lib/zlib/patch.zlib.h b/auto/lib/zlib/patch.zlib.h
deleted file mode 100644
index 122f7fa..0000000
--- a/auto/lib/zlib/patch.zlib.h
+++ /dev/null
@@ -1,10 +0,0 @@
---- zlib.h Thu Jul 9 20:06:56 1998
-+++ zlib-1.1.3/zlib.h Tue Mar 22 13:41:04 2005
-@@ -709,7 +709,6 @@
- (0 in case of error).
- */
-
--ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...));
- /*
- Converts, formats, and writes the args to the compressed file under
- control of the format string, as in fprintf. gzprintf returns the number of
