Remove old stale/unused configuration

common/server/default.nix

@@ -5,17 +5,12 @@
     ./nginx.nix
     ./thelounge.nix
     ./mumble.nix
-    ./icecast.nix
-    ./nginx-stream.nix
     ./matrix.nix
-    ./zerobin.nix
     ./gitea.nix
     ./samba.nix
     ./owncast.nix
     ./mailserver.nix
     ./nextcloud.nix
-    ./iodine.nix
-    ./searx.nix
     ./gitea-actions-runner.nix
     ./librechat.nix
     ./actualbudget.nix