Get rid of unused functions in util/json_util.hpp (#6446)

CHANGELOG.md

@@ -4,6 +4,7 @@
       - CHANGED: Update actions/cache to v3. [#6420](https://github.com/Project-OSRM/osrm-backend/pull/6420)
       - REMOVED: Drop support of Node 12 & 14. [#6431](https://github.com/Project-OSRM/osrm-backend/pull/6431)
     - Misc:
+      - REMOVED: Get rid of unused functions in util/json_util.hpp. [#6446](https://github.com/Project-OSRM/osrm-backend/pull/6446)
       - FIXED: Apply workaround for Conan installation issue on CI. [#6442](https://github.com/Project-OSRM/osrm-backend/pull/6442)
       - FIXED: Fix `npm audit` warnings in NPM package. [#6437](https://github.com/Project-OSRM/osrm-backend/pull/6437)
       - FIXED: Handle snapping parameter for all plugins in NodeJs bindings, but not for Route only. [#6417](https://github.com/Project-OSRM/osrm-backend/pull/6417)

include/util/container.hpp

@@ -1,22 +0,0 @@
-#ifndef CONTAINER_HPP
-#define CONTAINER_HPP
-
-#include <utility>
-
-namespace osrm
-{
-namespace util
-{
-
-template <class Container> void append_to_container(Container &&) {}
-
-template <class Container, typename T, typename... Args>
-void append_to_container(Container &&container, T value, Args &&... args)
-{
-    container.emplace_back(value);
-    append_to_container(std::forward<Container>(container), std::forward<Args>(args)...);
-}
-} // namespace util
-} // namespace osrm
-
-#endif

include/util/json_util.hpp

@@ -2,7 +2,6 @@
 #define JSON_UTIL_HPP
 
 #include "osrm/json_container.hpp"
-#include "util/container.hpp"
 
 #include <cmath>
 #include <limits>
@@ -27,30 +26,6 @@ template <typename T> T clamp_float(T d)
 
     return d;
 }
-
-template <typename... Args> Array make_array(Args... args)
-{
-    Array a;
-    // TODO: check why a.values.emplace_back(args...); is not an option here
-    append_to_container(a.values, args...);
-    return a;
-}
-
-// Easy acces to object hierachies
-inline Value &get(Value &value) { return value; }
-
-template <typename... Keys> Value &get(Value &value, const char *key, Keys... keys)
-{
-    using recursive_object_t = mapbox::util::recursive_wrapper<Object>;
-    return get(value.get<recursive_object_t>().get().values[key], keys...);
-}
-
-template <typename... Keys> Value &get(Value &value, unsigned key, Keys... keys)
-{
-    using recursive_array_t = mapbox::util::recursive_wrapper<Array>;
-    return get(value.get<recursive_array_t>().get().values[key], keys...);
-}
-
 } // namespace json
 } // namespace util
 } // namespace osrm