chore(3p/nix): unvendor tvix 0.1 r/4098

Nothing is using this now, and we'll likely never pick this up again,
but we learned a lot in the process.

Every now and then this breaks in some bizarre way on channel bumps
and it's just a waste of time to maintain that.

Change-Id: Idcf2f5acd4ca7070ce18d7149cbfc0d967dc0a44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5632
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 13 deletions

diff --git a/third_party/nix/src/libutil/finally.hh b/third_party/nix/src/libutil/finally.hh
deleted file mode 100644
index 2ead8661a6e7..000000000000
--- a/third_party/nix/src/libutil/finally.hh
+++ /dev/null
@@ -1,13 +0,0 @@
-#pragma once
-
-#include <functional>
-
-/* A trivial class to run a function at the end of a scope. */
-class Finally {
- private:
-  std::function<void()> fun;
-
- public:
-  explicit Finally(std::function<void()> fun) : fun(fun) {}
-  ~Finally() { fun(); }
-};