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-rw-r--r--third_party/nix/src/libutil/visitor.hh19
1 files changed, 0 insertions, 19 deletions
diff --git a/third_party/nix/src/libutil/visitor.hh b/third_party/nix/src/libutil/visitor.hh
deleted file mode 100644
index bf1d665af77f..000000000000
--- a/third_party/nix/src/libutil/visitor.hh
+++ /dev/null
@@ -1,19 +0,0 @@
-#pragma once
-
-namespace nix::util {
-
-// Helper class used for visiting std::variants by creating a variadic
-// list of lambda expressions that delegates calls to each of the
-// callables.
-//
-// See e.g.
-// https://dev.to/tmr232/that-overloaded-trick-overloading-lambdas-in-c17
-template <class... Ts>
-struct overloaded : Ts... {
-  using Ts::operator()...;
-};
-
-template <class... Ts>
-overloaded(Ts...) -> overloaded<Ts...>;
-
-}  // namespace nix::util