Remove dead code

src/Node/ModuleNode.php

@@ -482,19 +482,4 @@ protected function compileLoadTemplate(Compiler $compiler, $node, $var)
             throw new \LogicException('Trait templates can only be constant nodes.');
         }
     }
-
-    private function hasNodeOutputNodes(Node $node): bool
-    {
-        if ($node instanceof NodeOutputInterface) {
-            return true;
-        }
-
-        foreach ($node as $child) {
-            if ($this->hasNodeOutputNodes($child)) {
-                return true;
-            }
-        }
-
-        return false;
-    }
 }