desktop: Remove unused options

Since the goal of this nix-config is to make a consistent environment
across any number of systems, having options goes against this.

If these configuration values need to be changed, they should affect all
systems using the config by default.

modules/desktop.nix

@@ -7,7 +7,6 @@
 }:
 
 let
-  inherit (lib.types) float int;
   inherit (config.modules.system) username;
   inherit (config.boot) isContainer;
   inherit (nix-config.packages.${pkgs.system}) aleo-fonts;
@@ -17,19 +16,17 @@ let
     mkEnableOption
     mkIf
     mkMerge
-    mkOption
     ;
 
-  inherit (cfg)
-    bloat
-    opacity
-    fontSize
-    ;
+  inherit (cfg) bloat;
 
   stylix-background = nix-config.packages.${pkgs.system}.stylix-background.override {
     color = config.lib.stylix.colors.base00;
   };
 
+  opacity = 0.95;
+  fontSize = 11;
+
   cfg = config.modules.desktop;
 in
 {
@@ -38,16 +35,6 @@ in
   };
 
   options.modules.desktop = {
-    opacity = mkOption {
-      type = float;
-      default = 0.95;
-    };
-
-    fontSize = mkOption {
-      type = int;
-      default = 11;
-    };
-
     bloat = mkEnableOption "GUI applications";
   };