[gcc r14-3151] libstdc++: Revert accidentally committed change to bits/stl_iterator.h

[gcc r14-3151] libstdc++: Revert accidentally committed change to bits/stl_iterator.h

[Jonathan Wakely]

https://gcc.gnu.org/g:7723684fafd085bb567579461fb54a746abbea4f

commit r14-3151-g7723684fafd085bb567579461fb54a746abbea4f
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Aug 11 14:27:30 2023 +0100

    libstdc++: Revert accidentally committed change to bits/stl_iterator.h
    
    In commit r14-3134-g9cb2a7c8d54b1f I only meant to change some uses of
    __clamp_iter_cat to use __iter_category_t, I didn't mean to commit the
    additional change introducing __clamped_iter_cat_t. This reverts that
    part.
    
    libstdc++-v3/ChangeLog:
    
            * include/bits/stl_iterator.h (__clamped_iter_cat_t): Remove.

Diff:
---
 libstdc++-v3/include/bits/stl_iterator.h | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/libstdc++-v3/include/bits/stl_iterator.h b/libstdc++-v3/include/bits/stl_iterator.h
index d5ba05f3e22d..b13f4f8ddbfb 100644
--- a/libstdc++-v3/include/bits/stl_iterator.h
+++ b/libstdc++-v3/include/bits/stl_iterator.h
@@ -103,10 +103,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       using __clamp_iter_cat
 	= __conditional_t<derived_from<_Cat, _Limit>, _Limit, _Otherwise>;
 
-    template<typename _Iter, typename _Limit>
-      using __clamped_iter_cat_t
-	= __clamp_iter_cat<__iter_category_t<_Iter>, _Limit>;
-
     template<typename _Tp, typename _Up>
       concept __different_from
 	= !same_as<remove_cvref_t<_Tp>, remove_cvref_t<_Up>>;
@@ -172,7 +168,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 			  random_access_iterator_tag,
 			  bidirectional_iterator_tag>;
       using iterator_category
-	= __detail::__clamped_iter_cat_t<_Iterator, random_access_iterator_tag>;
+	= __detail::__clamp_iter_cat<typename __traits_type::iterator_category,
+				     random_access_iterator_tag>;
       using value_type = iter_value_t<_Iterator>;
       using difference_type = iter_difference_t<_Iterator>;
       using reference = iter_reference_t<_Iterator>;
@@ -1433,7 +1430,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       struct __move_iter_cat<_Iterator>
       {
 	using iterator_category
-	  = __clamped_iter_cat_t<_Iterator, random_access_iterator_tag>;
+	  = __clamp_iter_cat<__iter_category_t<_Iterator>,
+			     random_access_iterator_tag>;
       };
 #endif
   }