fix(#1896): remove dead forge_notify reason drop-list + auto-unsubscribe

nix/templates/manager.nix

@@ -1,16 +1,7 @@
 { ... }:
 {
-  imports = [ ./harness-base.nix ];
-
   # Entry-point for the privileged root agent (ruth). Referenced from
   # `flake.nix` (`nixosConfigurations.ruth`) and the meta-flake's
-  # `applied/ruth/flake.nix`. Forge subscription/participation firehose
-  # stays off so ruth's inbox isn't drowned in noise.
-  hyperhive.forge = {
-    keepSubscriptions = false;
-    skipNotifyReasons = [
-      "subscribed"
-      "participating"
-    ];
-  };
+  # `applied/ruth/flake.nix`.
+  imports = [ ./harness-base.nix ];
 }