dense_set: discard the no longer necessary operator!=

src/entt/container/dense_set.hpp

@@ -118,11 +118,6 @@ template<typename Lhs, typename Rhs>
     return lhs.it == rhs.it;
 }
 
-template<typename Lhs, typename Rhs>
-[[nodiscard]] constexpr bool operator!=(const dense_set_iterator<Lhs> &lhs, const dense_set_iterator<Rhs> &rhs) noexcept {
-    return !(lhs == rhs);
-}
-
 template<typename Lhs, typename Rhs>
 [[nodiscard]] constexpr bool operator<(const dense_set_iterator<Lhs> &lhs, const dense_set_iterator<Rhs> &rhs) noexcept {
     return lhs.it < rhs.it;
@@ -197,11 +192,6 @@ template<typename Lhs, typename Rhs>
     return lhs.index() == rhs.index();
 }
 
-template<typename Lhs, typename Rhs>
-[[nodiscard]] constexpr bool operator!=(const dense_set_local_iterator<Lhs> &lhs, const dense_set_local_iterator<Rhs> &rhs) noexcept {
-    return !(lhs == rhs);
-}
-
 } // namespace internal
 /*! @endcond */