remove unused avatar

src/game.rs

@@ -136,7 +136,6 @@ impl Game {
         let mut palettes: Vec<Palette> = Vec::new();
         let mut rooms: Vec<Room> = Vec::new();
         let mut tiles: Vec<Tile> = Vec::new();
-        let mut avatar: Option<Sprite> = None; // unwrap this later
         let mut sprites: Vec<Sprite> = Vec::new();
         let mut items: Vec<Item> = Vec::new();