deque: Use ptr::slice_from_raw_parts_mut

Author: taiki-e

crossbeam-deque/src/deque.rs

@@ -5,7 +5,6 @@ use std::fmt;
 use std::marker::PhantomData;
 use std::mem::{self, MaybeUninit};
 use std::ptr;
-use std::slice;
 use std::sync::atomic::{self, AtomicIsize, AtomicPtr, AtomicUsize, Ordering};
 use std::sync::Arc;
 
@@ -51,7 +50,7 @@ impl<T> Buffer<T> {
 
     /// Deallocates the buffer.
     unsafe fn dealloc(self) {
-        drop(Box::from_raw(slice::from_raw_parts_mut(
+        drop(Box::from_raw(ptr::slice_from_raw_parts_mut(
             self.ptr.cast::<MaybeUninit<T>>(),
             self.cap,
         )));