Replace boost::hash by std::hash (#6892)

* Replace boost::hash by std::hash

* Fix formatting

* Update CHANGELOG.md

src/extractor/edge_based_graph_factory.cpp

@@ -19,7 +19,6 @@
 #include "util/timing_util.hpp"
 
 #include <boost/assert.hpp>
-#include <boost/functional/hash.hpp>
 #include <boost/numeric/conversion/cast.hpp>
 
 #include <algorithm>

src/extractor/extraction_containers.cpp

@@ -13,6 +13,7 @@
 #include "util/for_each_indexed.hpp"
 #include "util/for_each_pair.hpp"
 #include "util/log.hpp"
+#include "util/std_hash.hpp"
 #include "util/timing_util.hpp"
 
 #include <boost/assert.hpp>
@@ -955,8 +956,7 @@ void ExtractionContainers::PrepareTrafficSignals(
     TIMER_START(prepare_traffic_signals);
 
     std::unordered_set<NodeID> bidirectional;
-    std::unordered_set<std::pair<NodeID, NodeID>, boost::hash<std::pair<NodeID, NodeID>>>
-        unidirectional;
+    std::unordered_set<std::pair<NodeID, NodeID>> unidirectional;
 
     for (const auto &osm_node : bidirectional_signal_nodes)
     {

src/updater/updater.cpp

@@ -18,6 +18,7 @@
 #include "util/mmap_tar.hpp"
 #include "util/opening_hours.hpp"
 #include "util/static_rtree.hpp"
+#include "util/std_hash.hpp"
 #include "util/string_util.hpp"
 #include "util/timezones.hpp"
 #include "util/timing_util.hpp"
@@ -42,25 +43,6 @@
 #include <tuple>
 #include <vector>
 
-namespace std
-{
-template <typename T1, typename T2, typename T3> struct hash<std::tuple<T1, T2, T3>>
-{
-    size_t operator()(const std::tuple<T1, T2, T3> &t) const
-    {
-        return hash_val(std::get<0>(t), std::get<1>(t), std::get<2>(t));
-    }
-};
-
-template <typename T1, typename T2> struct hash<std::tuple<T1, T2>>
-{
-    size_t operator()(const std::tuple<T1, T2> &t) const
-    {
-        return hash_val(std::get<0>(t), std::get<1>(t));
-    }
-};
-} // namespace std
-
 namespace osrm::updater
 {
 namespace