get rid of old learning code

src/game.rs

@@ -6,47 +6,10 @@ use crate::start_menu::StartMenu;
 /// The top-level structure of our game, which is a bevy plugin
 pub struct Game {}
 
-#[derive(Component)]
-struct Person;
-
-#[derive(Component)]
-struct Name(String);
-
-#[derive(Resource)]
-struct Greeter {
-    timer: Timer,
-}
-
-fn register_people(mut commands: Commands) {
-    commands.spawn((Person, Name(String::from("Alice"))));
-    commands.spawn((Person, Name(String::from("Bob"))));
-    commands.spawn((Person, Name(String::from("Carol"))));
-}
-
-fn greet(time: Res<Time>, mut timer: ResMut<Greeter>, query: Query<&Name, With<Person>>) {
-    timer.timer.tick(time.delta());
-    if timer.timer.just_finished() {
-        for name in &query {
-            info!(
-                "Hello, {name}! elapsed: {elapsed:.2?} delta: {delta:.2?}",
-                name = name.0,
-                elapsed = time.elapsed(),
-                delta = time.delta(),
-            );
-        }
-    }
-}
-
 impl Plugin for Game {
     fn build(&self, app: &mut App) {
         info!("Building rps Plugin");
-        let timer = Greeter {
-            timer: Timer::from_seconds(2.0, TimerMode::Repeating),
-        };
         app.add_plugins(StartMenu {});
-        app.insert_resource(timer)
-            .add_systems(Startup, register_people)
-            .add_systems(Update, greet);
     }
 }
 

src/start_menu.rs

@@ -18,7 +18,6 @@ fn quit_button() -> ButtonBundle {
         style: Style {
             width: Val::Px(150.0),
             height: Val::Px(65.0),
-            align_items: AlignItems::Center,
             ..default()
         },
         background_color: BackgroundColor::from(Color::rgb(1.0, 0.0, 0.0)),