Revert "Workaround winit bug where events execute immediately (#4)"

This reverts commit 1813f60.
This is fixed upstream.

src/platform_impl/web/event_loop/proxy.rs

@@ -17,13 +17,7 @@ impl<T: 'static> EventLoopProxy<T> {
 
     pub fn send_event(&self, event: T) -> Result<(), EventLoopClosed<T>> {
         self.sender.send(event).map_err(|SendError(event)| EventLoopClosed(event))?;
-
-        // Workaround: the we should never be immediately executing new things on the event loop!
-        let runner = self.runner.clone();
-        wasm_bindgen_futures::spawn_local(async move {
-            runner.wake();
-        });
-
+        self.runner.wake();
         Ok(())
     }
 }