derive clone

crates/bevy_ecs/src/system/combinator.rs

@@ -252,6 +252,7 @@ where
 }
 
 /// An [`IntoSystem`] creating an instance of [`PipeSystem`].
+#[derive(Clone)]
 pub struct IntoPipeSystem<A, B> {
     a: A,
     b: B,
@@ -285,17 +286,6 @@ where
     }
 }
 
-impl<A, B> Clone for IntoPipeSystem<A, B>
-where
-    A: Clone,
-    B: Clone,
-{
-    /// Clone the piped system. The cloned instance must be `.initialize()`d before it can run.
-    fn clone(&self) -> Self {
-        IntoPipeSystem::new(self.a.clone(), self.b.clone())
-    }
-}
-
 /// A [`System`] created by piping the output of the first system into the input of the second.
 ///
 /// This can be repeated indefinitely, but system pipes cannot branch: the output is consumed by the receiving system.