Cleanup

src/game.rs

@@ -12,7 +12,7 @@ impl Game<'_> {
     pub fn new(p: &mut Player) -> Game {
         let mut v: Vec<Level> = Vec::with_capacity(LEVELS);
         for _ in 0..LEVELS {
-            let mut l = Level::new();
+            let l = Level::new();
             v.push(l);
         }
         Game {