remove FutureMoves::remove

src/logic/future_moves.rs

@@ -172,15 +172,6 @@ impl FutureMoves {
         }
     }
 
-    #[allow(dead_code)]
-    fn remove(&mut self, index: usize) {
-        if let Some(parent) = self.arena[index].parent {
-            self.arena[parent].children.retain(|&j| j != index);
-        }
-
-        self.arena[index].parent = None;
-    }
-
     /// Determines if a [`Move`] at index `idx` is connected to `self.current_root`
     /// Returns `false` if `self.current_root` is None
     fn is_connected_to_root(&self, idx: usize) -> bool {