[PATCH] D51172: [libcxx] Comment out #define __cpp_lib_node_extract, we only support half of that functionality

[Hans Wennborg via Phabricator via cfe-commits]

hans added a comment.

In https://reviews.llvm.org/D51172#1211156, @erik.pilkington wrote:

> Landed as r340544. @hans: Can you cherry-pick?


Merged in r340662. Thanks!


Repository:
  rCXX libc++

https://reviews.llvm.org/D51172