Use Rust 2021 prelude in std itself.

3 files changed, 1 insertions, 3 deletions

diff --git a/library/std/src/sys/itron/spin.rs b/library/std/src/sys/itron/spin.rs
index d0149d1f037..44d409444bc 100644
--- a/library/std/src/sys/itron/spin.rs
+++ b/library/std/src/sys/itron/spin.rs
@@ -1,7 +1,6 @@
 use super::abi;
 use crate::{
     cell::UnsafeCell,
-    convert::TryFrom,
     mem::MaybeUninit,
     sync::atomic::{AtomicBool, AtomicUsize, Ordering},
 };
diff --git a/library/std/src/sys/itron/thread.rs b/library/std/src/sys/itron/thread.rs
index 5b718a460df..d28f57f33be 100644
--- a/library/std/src/sys/itron/thread.rs
+++ b/library/std/src/sys/itron/thread.rs
@@ -8,7 +8,6 @@ use super::{
 };
 use crate::{
     cell::UnsafeCell,
-    convert::TryFrom,
     ffi::CStr,
     hint, io,
     mem::ManuallyDrop,
diff --git a/library/std/src/sys/itron/time.rs b/library/std/src/sys/itron/time.rs
index 25f13ee441a..427ea0d80e1 100644
--- a/library/std/src/sys/itron/time.rs
+++ b/library/std/src/sys/itron/time.rs
@@ -1,5 +1,5 @@
 use super::{abi, error::expect_success};
-use crate::{convert::TryInto, mem::MaybeUninit, time::Duration};
+use crate::{mem::MaybeUninit, time::Duration};
 
 #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
 pub struct Instant(abi::SYSTIM);