remove unused desktop packages

nix/home/desktop.nix

@@ -8,23 +8,14 @@ let
     multilockscreen
     mullvad-vpn
     obsidian
-    signal-desktop
-    spotify
     slack
-    # Do NOT use qbittorrent unless you have set up interface binding with your
-    # VPN: https://web.archive.org/web/20210426203102/https://mullvad.net/en/help/bittorrent/
-    qbittorrent
     vlc
     zathura
-    zoom-us
   ];
 
   gnomePkgs = with pkgs; [
     gnomecast
     gnome.gnome-tweaks
-    # TODO: enable after experimenting with multi-monitor support and workspaces:
-    #   https://github.com/paperwm/PaperWM#recommended-gnome-shell-settings
-    # gnomeExtensions.paperwm
     gnomeExtensions.worksets
   ];
 in