removed some unneeded files

modules/desktop.nix

@@ -1,42 +0,0 @@
-{ pkgs, lib, config, office_stuff, ... }:
-
-let
-
-  extra_office_packages = (lib.ifEnable config.fsr.enable_office_bloat (with pkgs; [
-    vlc
-    libreoffice-fresh
-    okular
-    texlive.combined.scheme-full
-  ]));
-
-
-in
-{
-  # enable XFCE as lightweight desktop environment
-  services = {
-    xserver.enable = true;
-    xserver.desktopManager.xfce.enable = true;
-    xserver.displayManager.defaultSession = "xfce";
-
-    # Configure keymap in X11
-    xserver.layout = "de";
-    xserver.xkbOptions = "eurosign:e,ctrl:nocaps,compose:prsc";
-
-    # enable touchpad support
-    xserver.libinput.enable = true;
-  };
-  # enable sound
-  sound.enable = true;
-  sound.mediaKeys.enable = true;
-  hardware.pulseaudio.enable = true;
-
-  # additional programs for a lightweight working office environment
-  environment.systemPackages = with pkgs; [
-    ## audio management
-    pavucontrol
-    ## terminal, browsers, text editing
-    #vscodium
-    firefox
-  ] ++ extra_office_packages;
-
-}

modules/infoscreen.nix

@@ -1,29 +0,0 @@
-{ pkgs, lib, config, ... }:
-let
-  fsr-infoscreen = pkgs.fsr-infoscreen;
-
-in
-{
-
-  systemd = {
-    services."fsr-infoscreen" = {
-      enable = true;
-      wantedBy = [ "multi-user.target" ];
-      script = ''
-        ${pkgs.python39}/bin/python39 ${fsr-infoscreen}/build/middleware/infoscreen.py
-      '';
-
-      serviceConfig = {
-        User = "infoscreen";
-        Restart = "on-failure";
-      };
-    };
-  };
-
-  users.users.infoscreen = {
-    name = "infoscreen";
-    description = "custom user for service infoscreen service";
-    isNormalUser = true;
-  };
-
-}