diff --git a/cargosha256-dual-iir.nix b/cargosha256-dual-iir.nix
deleted file mode 100644
index 2d89c3a..0000000
--- a/cargosha256-dual-iir.nix
+++ /dev/null
@@ -1 +0,0 @@
-"06qsl59bljr637xcrplbij7ma8l7waryi4lkbd4fxjac0gqpn55s"