std: clean up the TLS implementation
diff --git a/library/std/src/sys/mod.rs b/library/std/src/sys/mod.rs
index bbd1d84..8f70cef 100644
--- a/library/std/src/sys/mod.rs
+++ b/library/std/src/sys/mod.rs
@@ -9,8 +9,6 @@
pub mod os_str;
pub mod path;
pub mod sync;
-#[allow(dead_code)]
-#[allow(unused_imports)]
pub mod thread_local;
// FIXME(117276): remove this, move feature implementations into individual
diff --git a/library/std/src/sys/thread_local/fast_local/lazy.rs b/library/std/src/sys/thread_local/fast_local/lazy.rs
index 1437176..c2e9a17 100644
--- a/library/std/src/sys/thread_local/fast_local/lazy.rs
+++ b/library/std/src/sys/thread_local/fast_local/lazy.rs
@@ -1,6 +1,5 @@
use crate::cell::UnsafeCell;
use crate::hint::unreachable_unchecked;
-use crate::mem::forget;
use crate::ptr;
use crate::sys::thread_local::abort_on_dtor_unwind;
use crate::sys::thread_local_dtor::register_dtor;
diff --git a/library/std/src/sys/thread_local/mod.rs b/library/std/src/sys/thread_local/mod.rs
index 1acf1f8..0a78a1a 100644
--- a/library/std/src/sys/thread_local/mod.rs
+++ b/library/std/src/sys/thread_local/mod.rs
@@ -1,4 +1,5 @@
#![unstable(feature = "thread_local_internals", reason = "should not be necessary", issue = "none")]
+#![cfg_attr(test, allow(unused))]
// There are three thread-local implementations: "static", "fast", "OS".
// The "OS" thread local key type is accessed via platform-specific API calls and is slow, while the
@@ -28,7 +29,8 @@
/// fn` declared in a user crate). If the callback unwinds anyway, then
/// `rtabort` with a message about thread local panicking on drop.
#[inline]
-pub fn abort_on_dtor_unwind(f: impl FnOnce()) {
+#[allow(dead_code)]
+fn abort_on_dtor_unwind(f: impl FnOnce()) {
// Using a guard like this is lower cost.
let guard = DtorUnwindGuard;
f();
diff --git a/library/std/src/sys/thread_local/os_local.rs b/library/std/src/sys/thread_local/os_local.rs
index 6b24fe2..d6ddbb7 100644
--- a/library/std/src/sys/thread_local/os_local.rs
+++ b/library/std/src/sys/thread_local/os_local.rs
@@ -1,8 +1,8 @@
use super::abort_on_dtor_unwind;
use crate::cell::Cell;
use crate::marker::PhantomData;
+use crate::ptr;
use crate::sys_common::thread_local_key::StaticKey as OsKey;
-use crate::{panic, ptr};
#[doc(hidden)]
#[allow_internal_unstable(thread_local_internals)]
