refactor(lib): remove importing prelude trait

Author: tottoto

src/client/legacy/connect/http.rs

@@ -679,7 +679,6 @@ fn connect(
     // keepalive timeout, it would be nice to use that instead of socket2,
     // and avoid the unsafe `into_raw_fd`/`from_raw_fd` dance...
     use socket2::{Domain, Protocol, Socket, Type};
-    use std::convert::TryInto;
 
     let domain = Domain::for_address(*addr);
     let socket = Socket::new(domain, Type::STREAM, Some(Protocol::TCP))

src/client/legacy/connect/mod.rs

@@ -248,7 +248,6 @@ where
 pub(super) mod sealed {
     use std::error::Error as StdError;
     use std::future::Future;
-    use std::marker::Unpin;
 
     use ::http::Uri;
     use hyper::rt::{Read, Write};

src/client/legacy/pool.rs

@@ -6,7 +6,6 @@ use std::error::Error as StdError;
 use std::fmt::{self, Debug};
 use std::future::Future;
 use std::hash::Hash;
-use std::marker::Unpin;
 use std::ops::{Deref, DerefMut};
 use std::pin::Pin;
 use std::sync::{Arc, Mutex, Weak};

src/common/rewind.rs

@@ -1,4 +1,3 @@
-use std::marker::Unpin;
 use std::{cmp, io};
 
 use bytes::{Buf, Bytes};

src/server/conn/auto.rs

@@ -7,7 +7,7 @@ use std::marker::PhantomPinned;
 use std::mem::MaybeUninit;
 use std::pin::Pin;
 use std::task::{Context, Poll};
-use std::{error::Error as StdError, io, marker::Unpin, time::Duration};
+use std::{error::Error as StdError, io, time::Duration};
 
 use bytes::Bytes;
 use http::{Request, Response};