Fix cargo check on examples

examples/all_events.rs

@@ -1,7 +1,6 @@
+use dioxus::prelude::*;
 use std::{collections::VecDeque, fmt::Debug, rc::Rc};
 
-use dioxus::{events::*, html::MouseEvent, prelude::*};
-
 fn main() {
     launch(app);
 }