Fix lint warnings

src/framework/interactions/components.rs

@@ -25,10 +25,6 @@ impl<T> ActionRow<T> {
         self.components.push((id, component));
     }
 
-    pub fn len(&self) -> usize {
-        self.components.len()
-    }
-
     pub fn is_empty(&self) -> bool {
         self.components.is_empty()
     }