Remove redundant Sized bound

Signed-off-by: Yoshua Wuyts <yoshuawuyts@gmail.com>

Author: Tyler Neely

src/stream/stream/mod.rs

@@ -270,10 +270,7 @@ pub trait Stream {
  /// #
  /// # }) }
  /// ```
- fn fuse(self) -> Fuse<Self>
- where
- Self: Sized,
- {
+ fn fuse(self) -> Fuse<Self> {
  Fuse {
  stream: self,
  done: false,