Remove auto traits not deduped warning
@@ -585,10 +585,6 @@ For example, `dyn Trait + Send + UnwindSafe` is the same as
> `dyn Send + Sync` is a different type from `dyn Sync + Send`. See
> [issue 33140].
-> Warning: Including the same auto trait multiple times is allowed, and each
-> instance is considered a unique type. As such, `dyn Trait + Send` is a
-> distinct type to `dyn Trait + Send + Send`. See [issue 47010].
-
Due to the opaqueness of which concrete type the value is of, trait objects are
[dynamically sized types]. Like all
<abbr title="dynamically sized types">DSTs</abbr>, trait objects are used
