remove some unneeded imports

5 files changed, 1 insertions, 12 deletions

diff --git a/library/core/src/iter/sources/repeat_with.rs b/library/core/src/iter/sources/repeat_with.rs
index 3f34105a3e0..d3cd74a4483 100644
--- a/library/core/src/iter/sources/repeat_with.rs
+++ b/library/core/src/iter/sources/repeat_with.rs
@@ -19,7 +19,6 @@ use crate::ops::Try;
 /// please open a GitHub issue explaining your use case.
 ///
 /// [`repeat()`]: crate::iter::repeat
-/// [`DoubleEndedIterator`]: crate::iter::DoubleEndedIterator
 ///
 /// # Examples
 ///
diff --git a/library/core/src/iter/traits/iterator.rs b/library/core/src/iter/traits/iterator.rs
index f3d1e45f4fb..02877604248 100644
--- a/library/core/src/iter/traits/iterator.rs
+++ b/library/core/src/iter/traits/iterator.rs
@@ -764,7 +764,6 @@ pub trait Iterator {
     /// more idiomatic to use [`for`] than `map()`.
     ///
     /// [`for`]: ../../book/ch03-05-control-flow.html#looping-through-a-collection-with-for
-    /// [`FnMut`]: crate::ops::FnMut
     ///
     /// # Examples
     ///
diff --git a/library/core/src/net/parser.rs b/library/core/src/net/parser.rs
index a08d2792d04..b9a1924d668 100644
--- a/library/core/src/net/parser.rs
+++ b/library/core/src/net/parser.rs
@@ -9,7 +9,7 @@ use crate::fmt;
 use crate::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, SocketAddrV6};
 use crate::str::FromStr;
 
-trait ReadNumberHelper: crate::marker::Sized {
+trait ReadNumberHelper: Sized {
     const ZERO: Self;
     fn checked_mul(&self, other: u32) -> Option<Self>;
     fn checked_add(&self, other: u32) -> Option<Self>;
diff --git a/library/core/src/primitive_docs.rs b/library/core/src/primitive_docs.rs
index 51e6947a9c2..3df990e5dd9 100644
--- a/library/core/src/primitive_docs.rs
+++ b/library/core/src/primitive_docs.rs
@@ -577,7 +577,6 @@ impl Copy for () {
 /// [`is_null`]: pointer::is_null
 /// [`offset`]: pointer::offset
 #[doc = concat!("[`into_raw`]: ", include_str!("../primitive_docs/box_into_raw.md"))]
-/// [`drop`]: mem::drop
 /// [`write`]: ptr::write
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_pointer {}
@@ -1026,7 +1025,6 @@ mod prim_str {}
 /// * [`UnwindSafe`]
 /// * [`RefUnwindSafe`]
 ///
-/// [`Unpin`]: marker::Unpin
 /// [`UnwindSafe`]: panic::UnwindSafe
 /// [`RefUnwindSafe`]: panic::RefUnwindSafe
 ///
@@ -1405,10 +1403,6 @@ mod prim_ref {}
 ///
 /// *See also the traits [`Fn`], [`FnMut`], and [`FnOnce`].*
 ///
-/// [`Fn`]: ops::Fn
-/// [`FnMut`]: ops::FnMut
-/// [`FnOnce`]: ops::FnOnce
-///
 /// Function pointers are pointers that point to *code*, not data. They can be called
 /// just like functions. Like references, function pointers are, among other things, assumed to
 /// not be null, so if you want to pass a function pointer over FFI and be able to accommodate null
diff --git a/library/core/src/sync/exclusive.rs b/library/core/src/sync/exclusive.rs
index 301ad41c966..3f3e19c55d4 100644
--- a/library/core/src/sync/exclusive.rs
+++ b/library/core/src/sync/exclusive.rs
@@ -69,9 +69,6 @@ use core::task::{Context, Poll};
 /// for any value. This is a parallel with the fact that
 /// `&` and `&mut` references together can be thought of as a _compile-time_
 /// version of a read-write lock.
-///
-///
-/// [`Sync`]: core::marker::Sync
 #[unstable(feature = "exclusive_wrapper", issue = "98407")]
 #[doc(alias = "SyncWrapper")]
 #[doc(alias = "SyncCell")]