Fix all warnings

crates/egui_demo_app/src/apps/custom3d_wgpu.rs

@@ -100,11 +100,11 @@ impl eframe::App for Custom3d {
     fn update(
         &mut self,
         ctx: &egui::Context,
-        frame: &mut eframe::Frame,
+        _frame: &mut eframe::Frame,
         render: Option<&ViewportRender>,
     ) {
         if let Some(render) = render {
-            render(ctx, ctx.get_viewport_id(), ctx.get_parent_viewport_id());
+            render(ctx);
             return;
         }
         egui::CentralPanel::default().show(ctx, |ui| {

crates/egui_demo_app/src/backend_panel.rs

@@ -433,7 +433,6 @@ impl EguiWindows {
                 tmp_ctx.memory_ui(ui);
             });
 
-        let tmp_output_event_history = output_event_history.clone();
         egui::Window::new("📤 Output Events")
             .open(output_events)
             .resizable(true)