nixos/profiles/minimal: don't install freedesktop files

This saves about 25M from the closure size of:

$ nix build -f nixos system --arg configuration '
{ imports = [ ./nixos/modules/profiles/minimal.nix ];
fileSystems."/".label="root";
boot.loader.grub.device = "nodev";
}'

rnhmjoj 3bb69836 950d41c9

Changed files
+5
nixos
modules
profiles
+5
nixos/modules/profiles/minimal.nix
···
documentation.nixos.enable = mkDefault false;
programs.command-not-found.enable = mkDefault false;
+
+
xdg.autostart.enable = mkDefault false;
+
xdg.icons.enable = mkDefault false;
+
xdg.mime.enable = mkDefault false;
+
xdg.sounds.enable = mkDefault false;
}