clear unused import

src/scene.rs

@@ -1,7 +1,6 @@
+use std::fs::read_to_string;
 use std::path::PathBuf;
 use serde_derive::{Serialize, Deserialize};
-use crate::Position;
-use std::fs::read_to_string;
 
 #[derive(Debug, Eq, PartialEq)]
 pub struct Scene {