Make clippy happy

packages/core/tests/create_fragments.rs

@@ -7,7 +7,7 @@ use dioxus_core::ElementId;
 #[test]
 fn empty_fragment_creates_nothing() {
     fn app(cx: Scope) -> Element {
-        cx.render(rsx!({ () }))
+        cx.render(rsx!({}))
     }
 
     let mut vdom = VirtualDom::new(app);

packages/core/tests/miri_stress.rs

@@ -15,7 +15,7 @@ fn test_memory_leak() {
         cx.spawn(async {});
 
         if val == 2 || val == 4 {
-            return render!({ () });
+            return render!({});
         }
 
         let name = cx.use_hook(|| String::from("numbers: "));