Revert "workstation | enable greetd to start things up"

This reverts commit 311b925cff.

It is more hassle than it is worth.

workstation/configuration.nix

@@ -1,15 +1,5 @@
-{ config, lib, pkgs, ... }:
-let
-  swayConfig = pkgs.writeText "greetd-sway-config" ''
-    # `-l` activates layer-shell mode. Notice that `swaymsg exit` will run after gtkgreet.
-    exec "${pkgs.greetd.gtkgreet}/bin/gtkgreet -l -c sway; swaymsg exit"
-    bindsym Mod4+shift+e exec swaynag \
-      -t warning \
-      -m 'What do you want to do?' \
-      -b 'Poweroff' 'systemctl poweroff' \
-      -b 'Reboot' 'systemctl reboot'
-  '';
-in
+{ config, pkgs, ... }:
+
 {
   # Bootloader.
   boot.loader.systemd-boot.enable = true;
@@ -32,24 +22,8 @@ in
   # Select internationalisation properties.
   i18n.defaultLocale = "en_US.utf8";
 
-  services.greetd = {
-    enable = true;
-    settings = {
-      default_session = {
-        command = "${pkgs.sway}/bin/sway --config ${swayConfig}";
-      };
-    };
-  };
-
-  environment.etc."greetd/environments".text = ''
-    sway
-    fish
-    bash
-    startxfce4
-  '';
-
   # Splash screen
-  boot.plymouth.enable = true;
+  boot.plymouth.enable = false;
   boot.plymouth.theme = "breeze";
 
   security.polkit.enable = true;
@@ -65,6 +39,10 @@ in
   # Enable the X11 windowing system.
   #services.xserver.enable = false;
 
+  # Enable the GNOME Desktop Environment.
+  services.xserver.displayManager.gdm.enable = true;
+  services.xserver.displayManager.gdm.wayland = true;
+  #services.xserver.desktopManager.gnome.enable = false;
 
   # Configure keymap in X11
   #services.xserver = {