unnecessary comment

Author: vinay-deshmukh

libcxx/test/std/containers/associative/map/map.nonmember/compare.three_way.pass.cpp

@@ -23,8 +23,6 @@
 
 int main(int, char**) {
   assert(test_ordered_map_container_spaceship<std::map>());
-  // `std::map` is not constexpr before C++26
-
 #if TEST_STD_VER >= 26
   static_assert(test_ordered_map_container_spaceship<std::map>());
 #endif