switch back to derived clone

Author: jbr

src/encoder.rs

@@ -78,7 +78,7 @@ impl AsyncRead for Encoder {
 // }
 
 /// The sending side of the encoder.
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct Sender(async_channel::Sender<Vec<u8>>);
 
 /// Create a new SSE encoder.
@@ -132,9 +132,3 @@ impl Sender {
         Ok(())
     }
 }
-
-impl Clone for Sender {
-    fn clone(&self) -> Self {
-        Self(self.0.clone())
-    }
-}