meta: drop temporary trampoline for meta_arg

src/entt/meta/utility.hpp

@@ -181,16 +181,6 @@ template<typename Type>
     return internal::meta_arg_node(Type{}, index, ctx);
 }
 
-/**
- * @brief Returns the meta type of the i-th element of a list of arguments.
- * @tparam Type Type list of the actual types of arguments.
- * @return The meta type of the i-th element of the list of arguments.
- */
-template<typename Type>
-[[nodiscard]] static meta_type meta_arg_TODO(const std::size_t index) noexcept {
-    return meta_arg<Type>(index);
-}
-
 /**
  * @brief Sets the value of a given variable.
  * @tparam Type Reflected type to which the variable is associated.