Remove <unstable> from briefcase

I don't use this anywhere, so it's time to shed more weight.

1 files changed, 0 insertions, 5 deletions

diff --git a/default.nix b/default.nix
index 319ecc8660..55bb447a5c 100644
--- a/default.nix
+++ b/default.nix
@@ -11,11 +11,6 @@ let
       ref = "nixos-20.03";
       rev = "afa9ca61924f05aacfe495a7ad0fd84709d236cc";
     }) {};
-    unstable = import (builtins.fetchGit {
-      url = "https://github.com/NixOS/nixpkgs-channels";
-      ref = "nixos-unstable";
-      rev = "dc80d7bc4a244120b3d766746c41c0d9c5f81dfa";
-    }) {};
     briefcase = import (builtins.path {
       path = ./.;
       name = "briefcase";