Minor cleanup

src/main.rs

@@ -30,7 +30,6 @@ async fn run(mut game: game::Game) -> Result<()> {
 	event_loop.run(move |event, _, control_flow| {
 		match event {
 			Event::RedrawRequested(window_id) if window_id == gpu.window().id() => {
-				gpu.update();
 				game.update();
 				match gpu.render(&game) {
 					Ok(_) => {}

src/render/gpustate.rs

@@ -194,8 +194,6 @@ impl GPUState {
 		self.update_starfield_buffer(game)
 	}
 
-	pub fn update(&mut self) {}
-
 	/// Make a SpriteInstance for each of the game's visible sprites.
 	/// Will panic if SPRITE_INSTANCE_LIMIT is exceeded.
 	///