Remove duplicate trait bound

ComputerDruid · cramertj · commit 78c5d852ec24 · 2019-07-31T12:32:51.000-07:00
`Fut3: Future` was listed twice.
diff --git a/futures-util/src/future/join.rs b/futures-util/src/future/join.rs
@@ -168,7 +168,6 @@ where
     Fut1: Future,
     Fut2: Future,
     Fut3: Future,
-    Fut3: Future,
     Fut4: Future,
 {
     Join4::new(future1, future2, future3, future4)

Original file line number	Diff line number	Diff line change
`@@ -168,7 +168,6 @@ where`
`168`	`168`	`Fut1: Future,`
`169`	`169`	`Fut2: Future,`
`170`	`170`	`Fut3: Future,`
`171`		`- Fut3: Future,`
`172`	`171`	`Fut4: Future,`
`173`	`172`	`{`
`174`	`173`	`Join4::new(future1, future2, future3, future4)`