[libc++] Fix the documentation build

There was a duplicate link target.

Author: ldionne

libcxx/docs/Status/Cxx17.rst

@@ -40,14 +40,14 @@ Paper Status
 
 .. note::
 
-   .. [#note-P0067] P0067: ``std::(to|from)_chars`` for integrals has been available since version 7.0. ``std::to_chars`` for ``float`` and ``double`` since version 14.0 ``std::to_chars`` for ``long double`` uses the implementation for ``double``.
+   .. [#note-P0067R5] P0067R5: ``std::(to|from)_chars`` for integrals has been available since version 7.0. ``std::to_chars`` for ``float`` and ``double`` since version 14.0 ``std::to_chars`` for ``long double`` uses the implementation for ``double``.
    .. [#note-P0226] P0226: Progress is tracked `here <https://libcxx.llvm.org/Status/SpecialMath.html>`_.
    .. [#note-P0607] P0607: The parts of P0607 that are not done are the ``<regex>`` bits.
    .. [#note-P0154] P0154: The required macros are only implemented as of clang 19.
    .. [#note-P0452] P0452: The changes to ``std::transform_inclusive_scan`` and ``std::transform_exclusive_scan`` have not yet been implemented.
    .. [#note-P0156] P0156: That paper was pulled out of the draft at the 2017-01 meeting in Kona.
    .. [#note-P0181] P0181: That paper was pulled out of the draft at the 2017-01 meeting in Kona.
-   .. [#note-P0067] P0067: That paper was resolved by `P0067R5 <https://wg21.link/P0067R5>`__.
+   .. [#note-P0067R3] P0067R3: That paper was resolved by `P0067R5 <https://wg21.link/P0067R5>`__.
    .. [#note-LWG2587] LWG2587: That LWG issue was resolved by `LWG2567 <https://wg21.link/LWG2567>`__.
    .. [#note-LWG2588] LWG2588: That LWG issue was resolved by `LWG2568 <https://wg21.link/LWG2568>`__.
    .. [#note-LWG2955] LWG2955: That LWG issue was resolved by `P0682R1 <https://wg21.link/P0682R1>`__.

libcxx/docs/Status/Cxx17Papers.csv

@@ -44,7 +44,7 @@
 "`P0032R3 <https://wg21.link/P0032R3>`__","Homogeneous interface for variant, any and optional","2016-06 (Oulu)","|Complete|","4.0",""
 "`P0040R3 <https://wg21.link/P0040R3>`__","Extending memory management tools","2016-06 (Oulu)","|Complete|","4.0",""
 "`P0063R3 <https://wg21.link/P0063R3>`__","C++17 should refer to C11 instead of C99","2016-06 (Oulu)","|Complete|","7.0",""
-"`P0067R3 <https://wg21.link/P0067R3>`__","Elementary string conversions","2016-06 (Oulu)","|Nothing To Do| [#note-P0067]_","n/a",""
+"`P0067R3 <https://wg21.link/P0067R3>`__","Elementary string conversions","2016-06 (Oulu)","|Nothing To Do| [#note-P0067R3]_","n/a",""
 "`P0083R3 <https://wg21.link/P0083R3>`__","Splicing Maps and Sets","2016-06 (Oulu)","|Complete|","8.0",""
 "`P0084R2 <https://wg21.link/P0084R2>`__","Emplace Return Type","2016-06 (Oulu)","|Complete|","4.0",""
 "`P0088R3 <https://wg21.link/P0088R3>`__","Variant: a type-safe union for C++17","2016-06 (Oulu)","|Complete|","4.0",""
@@ -71,7 +71,7 @@
 "`P0394R4 <https://wg21.link/P0394R4>`__","Hotel Parallelifornia: terminate() for Parallel Algorithms Exception Handling","2016-06 (Oulu)","|Complete|","17.0",""
 "","","","","",""
 "`P0003R5 <https://wg21.link/P0003R5>`__","Removing Deprecated Exception Specifications from C++17","2016-11 (Issaquah)","|Complete|","5.0",""
-"`P0067R5 <https://wg21.link/P0067R5>`__","Elementary string conversions, revision 5","2016-11 (Issaquah)","|Partial| [#note-P0067]_","",""
+"`P0067R5 <https://wg21.link/P0067R5>`__","Elementary string conversions, revision 5","2016-11 (Issaquah)","|Partial| [#note-P0067R5]_","",""
 "`P0403R1 <https://wg21.link/P0403R1>`__","Literal suffixes for ``basic_string_view``\ ","2016-11 (Issaquah)","|Complete|","4.0",""
 "`P0414R2 <https://wg21.link/P0414R2>`__","Merging shared_ptr changes from Library Fundamentals to C++17","2016-11 (Issaquah)","|Complete|","11.0",""
 "`P0418R2 <https://wg21.link/P0418R2>`__","Fail or succeed: there is no atomic lattice","2016-11 (Issaquah)","","",""