message: Don't workaround clang/c2 in utility.common_iterator
  ... since we no longer support Clang/C2.
diff: @@ -59,9 +59,7 @@ namespace {
  using I = ranges::basic_iterator<silly_arrow_cursor>;
  auto ci = ranges::common_iterator<I, ranges::unreachable>{};
  CONCEPT_ASSERT(ranges::Same<I, decltype(ci.operator->())>());
  -#if !defined(__clang__) || !defined(__c2__) // Don't trigger VSO#364731
  CHECK(ci.operator->().operator->() == 42);
  -#endif
  }
  // the expression *i is a glvalue [lvalue case]
  {
  