Removed umu input

flake.nix

@@ -21,11 +21,6 @@
       url = "git+https://github.com/hyprwm/Hyprland?submodules=1";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    umu = {
-      url =
-        "git+https://github.com/Open-Wine-Components/umu-launcher/?dir=packaging/nix&submodules=1";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
     sops-nix = {
       url = "github:Mic92/sops-nix";
       inputs.nixpkgs.follows = "nixpkgs";