Remove redundant bounds on get_unchecked for vec_deque iterators, and run fmt

Author: steffahn

library/alloc/src/collections/vec_deque/iter.rs

@@ -104,11 +104,8 @@ impl<'a, T> Iterator for Iter<'a, T> {
 
     #[inline]
     #[doc(hidden)]
-    unsafe fn __iterator_get_unchecked(&mut self, idx: usize) -> Self::Item
-    where
-        Self: TrustedRandomAccess,
-    {
-        // Safety: The TrustedRandomAccess contract requires that callers only  pass an index
+    unsafe fn __iterator_get_unchecked(&mut self, idx: usize) -> Self::Item {
+        // Safety: The TrustedRandomAccess contract requires that callers only pass an index
         // that is in bounds.
         unsafe {
             let idx = wrap_index(self.tail.wrapping_add(idx), self.ring.len());

library/alloc/src/collections/vec_deque/iter_mut.rs

@@ -90,11 +90,8 @@ impl<'a, T> Iterator for IterMut<'a, T> {
 
     #[inline]
     #[doc(hidden)]
-    unsafe fn __iterator_get_unchecked(&mut self, idx: usize) -> Self::Item
-    where
-        Self: TrustedRandomAccess,
-    {
-        // Safety: The TrustedRandomAccess contract requires that callers only  pass an index
+    unsafe fn __iterator_get_unchecked(&mut self, idx: usize) -> Self::Item {
+        // Safety: The TrustedRandomAccess contract requires that callers only pass an index
         // that is in bounds.
         unsafe {
             let idx = wrap_index(self.tail.wrapping_add(idx), self.ring.len());

library/alloc/src/vec/into_iter.rs

@@ -2,7 +2,9 @@ use crate::alloc::{Allocator, Global};
 use crate::raw_vec::RawVec;
 use core::fmt;
 use core::intrinsics::arith_offset;
-use core::iter::{FusedIterator, InPlaceIterable, SourceIter, TrustedLen, TrustedRandomAccessNoCoerce};
+use core::iter::{
+    FusedIterator, InPlaceIterable, SourceIter, TrustedLen, TrustedRandomAccessNoCoerce,
+};
 use core::marker::PhantomData;
 use core::mem::{self};
 use core::ptr::{self, NonNull};