[libc++] Remove duplicate C++17 LWG issues from the CSVs

- LWG2308 was voted into C++14 in the 2014 Issaquah meeting
- LWG2682 was voted into C++20 in San Diego 2018, not C++17 in Issaquah
- LWG2769 was voted into C++17 in Kona 2017, not Issaquah 2016

Author: ldionne

libcxx/docs/Status/Cxx17Issues.csv

@@ -2,7 +2,6 @@
 "`LWG2016 <https://wg21.link/LWG2016>`__","Allocators must be no-throw swappable","2014-11 (Urbana)","|Complete|","",""
 "`LWG2118 <https://wg21.link/LWG2118>`__","``unique_ptr``\  for array does not support cv qualification conversion of actual argument","2014-11 (Urbana)","|Complete|","",""
 "`LWG2170 <https://wg21.link/LWG2170>`__","Aggregates cannot be ``DefaultConstructible``\ ","2014-11 (Urbana)","|Complete|","",""
-"`LWG2308 <https://wg21.link/LWG2308>`__","Clarify container destructor requirements w.r.t. ``std::array``\ ","2014-11 (Urbana)","|Complete|","",""
 "`LWG2340 <https://wg21.link/LWG2340>`__","Replacement allocation functions declared as inline","2014-11 (Urbana)","|Complete|","",""
 "`LWG2354 <https://wg21.link/LWG2354>`__","Unnecessary copying when inserting into maps with braced-init syntax","2014-11 (Urbana)","|Complete|","",""
 "`LWG2377 <https://wg21.link/LWG2377>`__","``std::align``\  requirements overly strict","2014-11 (Urbana)","|Complete|","",""
@@ -224,7 +223,6 @@
 "`LWG2679 <https://wg21.link/LWG2679>`__","Inconsistent Use of Effects and Equivalent To","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2680 <https://wg21.link/LWG2680>`__","Add ""Equivalent to"" to filesystem","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2681 <https://wg21.link/LWG2681>`__","filesystem::copy() cannot copy symlinks","2016-11 (Issaquah)","|Complete|","",""
-"`LWG2682 <https://wg21.link/LWG2682>`__","filesystem::copy() won't create a symlink to a directory","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2686 <https://wg21.link/LWG2686>`__","Why is std::hash specialized for error_code, but not error_condition?","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2694 <https://wg21.link/LWG2694>`__","Application of LWG 436 accidentally deleted definition of ""facet""","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2696 <https://wg21.link/LWG2696>`__","Interaction between make_shared and enable_shared_from_this is underspecified","2016-11 (Issaquah)","|Nothing To Do|","",""
@@ -254,7 +252,6 @@
 "`LWG2760 <https://wg21.link/LWG2760>`__","non-const basic_string::data should not invalidate iterators","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2765 <https://wg21.link/LWG2765>`__","Did LWG 1123 go too far?","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2767 <https://wg21.link/LWG2767>`__","not_fn call_wrapper can form invalid types","2016-11 (Issaquah)","|Complete|","",""
-"`LWG2769 <https://wg21.link/LWG2769>`__","Redundant const in the return type of any_cast(const any&)","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2771 <https://wg21.link/LWG2771>`__","Broken Effects of some basic_string::compare functions in terms of basic_string_view","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2773 <https://wg21.link/LWG2773>`__","Making std::ignore constexpr","2016-11 (Issaquah)","|Complete|","",""
 "`LWG2777 <https://wg21.link/LWG2777>`__","basic_string_view::copy should use char_traits::copy","2016-11 (Issaquah)","|Complete|","",""