remove debugging attempts

Author: vinay-deshmukh

libcxx/include/__tree

@@ -112,11 +112,7 @@ __root, have a non-null __parent_ field.
 // Precondition:  __x != nullptr.
 template <class _NodePtr>
 inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX26 bool __tree_is_left_child(_NodePtr __x) _NOEXCEPT {
-  auto __0 = __x->__parent_;
-  _NodePtr __1 = __0->__left_;
-  _NodePtr __2 = __x;
-  return __1 == __2;
-  // return __x == __x->__parent_->__left_;
+  return __x == __x->__parent_->__left_;
 }
 
 // Determines if the subtree rooted at __x is a proper red black subtree.  If
@@ -573,25 +569,7 @@ public:
   using __end_node_pointer _LIBCPP_NODEBUG = __rebind_pointer_t<_VoidPtr, __tree_end_node<pointer> >;
 
   pointer __right_;
-
-// TODO: this is needed because of a bug in g++-15
-// in the
-// libcxx/test/std/containers/associative/map/map.erasure/erase_if.pass.cpp
-//
-/*
-libcxx/test-suite-install/include/c++/v1/__tree:114:33: error: result_decl not supported by dump_expr<expression
-error> is not a constant expression
-
-# |   114 |   return __x == __x->__parent_->__left_;
-
-# |       |                 ~~~~~~~~~~~~~~~~^~~~~~~
-
-*/
-// #if _LIBCPP_STD_VER <= 26
-//   __end_node_pointer __parent_;
-// #else
-  __end_node_pointer __parent_ = nullptr;
-// #endif
+  __end_node_pointer __parent_;
   bool __is_black_;
 
   _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX26 pointer __parent_unsafe() const {