Remove test subflake

.github/workflows/update.yml

@@ -20,6 +20,4 @@ jobs:
         uses: ./.
         with:
           _internal-strict-mode: true
-          flake-dirs: |
+
-            .
-            test/subflake

test/subflake/flake.lock

@@ -1,25 +0,0 @@
-{
-  "nodes": {
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1716330097,
-        "narHash": "sha256-8BO3B7e3BiyIDsaKA0tY8O88rClYRTjvAp66y+VBUeU=",
-        "rev": "5710852ba686cc1fd0d3b8e22b3117d43ba374c2",
-        "revCount": 629726,
-        "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.629726%2Brev-5710852ba686cc1fd0d3b8e22b3117d43ba374c2/018fa276-eb5e-762d-b67b-85f281987019/source.tar.gz"
-      },
-      "original": {
-        "type": "tarball",
-        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
-      }
-    },
-    "root": {
-      "inputs": {
-        "nixpkgs": "nixpkgs"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}

test/subflake/flake.nix

@@ -1,23 +0,0 @@
-# Used for testing the flake-dirs parameter
-{
-  description = "update-flake-lock test sub-flake";
-
-  inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
-
-  outputs = { self, nixpkgs }:
-    let
-      supportedSystems = [ "x86_64-linux" "aarch64-darwin" "aarch64-linux" "x86_64-darwin" ];
-      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
-        pkgs = import nixpkgs { inherit system; };
-      });
-    in
-    {
-      devShells = forEachSupportedSystem ({ pkgs }: {
-        default = pkgs.mkShell {
-          packages = with pkgs; [
-            ponysay
-          ];
-        };
-      });
-    };
-}