[libcxx] removes unnecessary traits from `has_unique_object_represent…

…ations`

`remove_cv_t` and `remove_all_extents_t` are taken care of by the
built-in trait, so we don't need to use them directly.

libcxx/include/__type_traits/has_unique_object_representation.h

@@ -11,8 +11,6 @@
 
 #include <__config>
 #include <__type_traits/integral_constant.h>
-#include <__type_traits/remove_all_extents.h>
-#include <__type_traits/remove_cv.h>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
@@ -24,7 +22,7 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Tp>
 struct _LIBCPP_TEMPLATE_VIS has_unique_object_representations
-    : public integral_constant<bool, __has_unique_object_representations(remove_cv_t<remove_all_extents_t<_Tp>>)> {};
+    : public integral_constant<bool, __has_unique_object_representations(_Tp)> {};
 
 template <class _Tp>
 inline constexpr bool has_unique_object_representations_v = has_unique_object_representations<_Tp>::value;