chore(clanInternals): remove unused 'templates' attribute"

lib/build-clan/module.nix

@@ -242,14 +242,14 @@ in
 
     clanInternals = {
       inherit inventoryClass;
+      # TODO: remove this after a month or so
+      # This is here for backwards compatibility for older CLI versions
       inventory = config.inventory;
 
       # TODO: unify this interface
       # We should have only clan.modules. (consistent with clan.templates)
       inherit (clan-core) clanModules;
 
-      templates = config.templates;
-
       secrets = config.secrets;
 
       # machine specifics