fix clippy warning

```
error: deref which would be done by auto-deref
   --> src/transport/mod.rs:295:36
    |
295 |             let bytes_consumed = f(&*bufs)?;
    |                                    ^^^^^^ help: try this: `&bufs`
    |
    = note: `-D clippy::explicit-auto-deref` implied by `-D warnings`
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
```

Signed-off-by: wanglei01 <[email protected]>

Author: wllenyj

src/transport/mod.rs

@@ -292,7 +292,7 @@ impl<S: BitmapSlice> IoBuffers<'_, S> {
         if bufs.is_empty() {
             Ok(0)
         } else {
-            let bytes_consumed = f(&*bufs)?;
+            let bytes_consumed = f(&bufs)?;
             if mark_dirty {
                 self.mark_dirty(bytes_consumed);
             }