[gcc r15-4940] libstdc++: Remove workaround for modules issue [PR113814]

[Nathaniel Shead via Gcc-cvs]

https://gcc.gnu.org/g:35425d025b46a384fa89c4d06bd7c128d09e3009

commit r15-4940-g35425d025b46a384fa89c4d06bd7c128d09e3009
Author: Nathaniel Shead <nathanielosh...@gmail.com>
Date:   Tue Nov 5 09:37:23 2024 +1100

    libstdc++: Remove workaround for modules issue [PR113814]
    
    The modules bug requiring this workaround was fixed with commit
    r15-4862-g815e48e3d42231.
    
            PR testsuite/113710
            PR c++/113814
    
    libstdc++-v3/ChangeLog:
    
            * include/bits/stl_pair.h: Remove workaround.
    
    Signed-off-by: Nathaniel Shead <nathanielosh...@gmail.com>

Diff:
---
 libstdc++-v3/include/bits/stl_pair.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/libstdc++-v3/include/bits/stl_pair.h 
b/libstdc++-v3/include/bits/stl_pair.h
index 0d60eaba1941..e92fcad2d660 100644
--- a/libstdc++-v3/include/bits/stl_pair.h
+++ b/libstdc++-v3/include/bits/stl_pair.h
@@ -1183,11 +1183,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     struct tuple_element<1, pair<_Tp1, _Tp2>>
     { typedef _Tp2 type; };
 
-  // Forward declare the partial specialization for std::tuple
-  // to work around modules bug PR c++/113814.
-  template<size_t __i, typename... _Types>
-    struct tuple_element<__i, tuple<_Types...>>;
-
 #if __cplusplus >= 201703L
   template<typename _Tp1, typename _Tp2>
     inline constexpr size_t tuple_size_v<pair<_Tp1, _Tp2>> = 2;