Remove passmenu-otp

It's already included in my dwm configuration so it doesn't need to be
re-declared here.

modules/nixos/cli/password-store.nix

@@ -23,8 +23,6 @@ in
 
   config = mkIf cfg.enable {
     environment.systemPackages = with pkgs; [
-      passmenu-otp
-
       (pass.withExtensions (e: with e; cfg.extensions))
     ];
   };