Snippets for apache-arrow 24.0.0 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/988989v07ic9dc2777v5kwz7rzil88hk-arrow-cpp-24.0.0.drv.

• /nix/var/nix/builds/nix-95491-1263045332/source/cpp/src/arrow/vendored/datetime/tz.cpp:485:1: warning: unused function 'discover_tz_dir' [-Wunused-function]
    485 | discover_tz_dir()
        | ^~~~~~~~~~~~~~~
  

• /nix/var/nix/builds/nix-95491-1263045332/source/cpp/src/arrow/acero/asof_join_node.cc:794:17: warning: private field 'node_' is not used [-Wunused-private-field]
    794 |   AsofJoinNode* node_;
        |                 ^
  

• /nix/var/nix/builds/nix-95491-1263045332/source/cpp/src/arrow/acero/asof_join_node.cc:796:10: warning: private field 'index_' is not used [-Wunused-private-field]
    796 |   size_t index_;
        |          ^