chore: release 0.2.2 with less warning

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "garcon"
-version = "0.2.1"
+version = "0.2.2"
 authors = ["Hans Larsen <[email protected]>"]
 edition = "2018"
 description = "A collection of trait and classes to make your thread or async function wait."

src/lib.rs

@@ -8,10 +8,7 @@ use core::sync::atomic::{AtomicU64, Ordering};
 use core::time::Duration;
 
 #[cfg(feature = "async")]
-use core::{
-    future::{self, Future},
-    pin::Pin,
-};
+use core::{future::Future, pin::Pin};
 
 #[cfg(not(feature = "no_std"))]
 mod throttle;