remove commented code

Author: Viktor Yastrebov

tests/functional/generic_configurable_tests.cpp

@@ -16,32 +16,6 @@
 
 #include <fstream>
 
-
-//// partial specialization (full specialization works too)
-//NLOHMANN_JSON_NAMESPACE_BEGIN
-//template <typename T>
-//struct adl_serializer<std::optional<T>> {
-//    static void to_json(json& j, const std::optional<T>& opt) {
-//        if (opt == std::nullopt) {
-//            j = nullptr;
-//        } else {
-//            j = *opt; // this will call adl_serializer<T>::to_json which will
-//                       // find the free function to_json in T's namespace!
-//        }
-//    }
-
-//    static void from_json(const json& j, std::optional<T>& opt) {
-//        if (j.is_null()) {
-//            opt = std::nullopt;
-//        } else {
-//            opt = j.template get<T>(); // same as above, but with
-//                                        // adl_serializer<T>::from_json
-//        }
-//    }
-//};
-//NLOHMANN_JSON_NAMESPACE_END
-
-
 using json = nlohmann::json;
 namespace fs = std::filesystem;
 using namespace oklt::tests;