refactor: remove redundant configure_outputs method

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/meta_plugin/mod.rs

@@ -253,13 +253,6 @@ pub trait MetaPlugin where Self: 'static {
         std::collections::HashMap::new()
     }
     
-    // Configure plugin outputs mapping
-    fn configure_outputs(&mut self, outputs: &std::collections::HashMap<String, serde_yaml::Value>) -> anyhow::Result<()> {
-        for (key, value) in outputs {
-            self.outputs_mut().insert(key.clone(), value.clone());
-        }
-        Ok(())
-    }
     
     // Method to downcast to concrete type (for checking finalization state)
     fn as_any_mut(&mut self) -> &mut dyn std::any::Any where Self: Sized {