remove some unneeded imports

3 files changed, 3 insertions, 7 deletions

diff --git a/library/alloc/src/vec/cow.rs b/library/alloc/src/vec/cow.rs
index 64943a273c9..2c799605b7b 100644
--- a/library/alloc/src/vec/cow.rs
+++ b/library/alloc/src/vec/cow.rs
@@ -1,5 +1,4 @@
 use crate::borrow::Cow;
-use core::iter::FromIterator;
 
 use super::Vec;
 
diff --git a/library/alloc/src/vec/into_iter.rs b/library/alloc/src/vec/into_iter.rs
index 6a05f70e437..02faf8e6389 100644
--- a/library/alloc/src/vec/into_iter.rs
+++ b/library/alloc/src/vec/into_iter.rs
@@ -108,7 +108,7 @@ impl<T, A: Allocator> IntoIter<T, A> {
     /// ```
     /// # let mut into_iter = Vec::<u8>::with_capacity(10).into_iter();
     /// let mut into_iter = std::mem::replace(&mut into_iter, Vec::new().into_iter());
-    /// (&mut into_iter).for_each(core::mem::drop);
+    /// (&mut into_iter).for_each(drop);
     /// std::mem::forget(into_iter);
     /// ```
     ///
diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs
index 9f0111db452..3736a6e0b0e 100644
--- a/library/alloc/src/vec/mod.rs
+++ b/library/alloc/src/vec/mod.rs
@@ -56,12 +56,9 @@
 #[cfg(not(no_global_oom_handling))]
 use core::cmp;
 use core::cmp::Ordering;
-use core::convert::TryFrom;
 use core::fmt;
 use core::hash::{Hash, Hasher};
 use core::iter;
-#[cfg(not(no_global_oom_handling))]
-use core::iter::FromIterator;
 use core::marker::PhantomData;
 use core::mem::{self, ManuallyDrop, MaybeUninit, SizedTypeProperties};
 use core::ops::{self, Index, IndexMut, Range, RangeBounds};
@@ -2990,7 +2987,7 @@ impl<'a, T: Copy + 'a, A: Allocator + 'a> Extend<&'a T> for Vec<T, A> {
     }
 }
 
-/// Implements comparison of vectors, [lexicographically](core::cmp::Ord#lexicographical-comparison).
+/// Implements comparison of vectors, [lexicographically](Ord#lexicographical-comparison).
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T: PartialOrd, A: Allocator> PartialOrd for Vec<T, A> {
     #[inline]
@@ -3002,7 +2999,7 @@ impl<T: PartialOrd, A: Allocator> PartialOrd for Vec<T, A> {
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T: Eq, A: Allocator> Eq for Vec<T, A> {}
 
-/// Implements ordering of vectors, [lexicographically](core::cmp::Ord#lexicographical-comparison).
+/// Implements ordering of vectors, [lexicographically](Ord#lexicographical-comparison).
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T: Ord, A: Allocator> Ord for Vec<T, A> {
     #[inline]