From c2a61161a64766974a89009cfc6b20a797d6fcb2 Mon Sep 17 00:00:00 2001
From: artemp <artem@mapnik.org>
Date: Tue, 13 Dec 2016 15:51:57 +0100
Subject: [PATCH] remove `hash_combine` (unused)

---
 include/mapnik/value/hash.hpp | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/include/mapnik/value/hash.hpp b/include/mapnik/value/hash.hpp
index 1c6b57216..a035f1657 100644
--- a/include/mapnik/value/hash.hpp
+++ b/include/mapnik/value/hash.hpp
@@ -39,11 +39,6 @@ namespace mapnik {
 
 namespace detail {
 
-inline void hash_combine(std::size_t & seed, std::size_t val)
-{
-    seed ^= val + 0x9e3779b9 + (seed << 6) + (seed >> 2);
-}
-
 struct value_hasher
 {
     std::size_t operator() (value_null val) const