message: Fix unnecessary bound in web.
diff: @@ -134,7 +134,7 @@ where
  impl<'a, Message> From<Container<'a, Message>> for Element<'a, Message>
  where
  - Message: 'static + Clone,
  + Message: 'static,
  {
  fn from(container: Container<'a, Message>) -> Element<'a, Message> {
  Element::new(container)
  