Auto merge of #137192 - kornelski:windows-tls-lto, r=<try>

Remove obsolete Windows ThinLTO+TLS workaround

The bug #109797 has been fixed by #129079, so this workaround is no longer needed.

try-job: i686-mingw-1
try-job: i686-mingw-2
try-job: i686-mingw-3
try-job: x86_64-mingw-1
try-job: x86_64-mingw-2
try-job: dist-i686-mingw
try-job: dist-x86_64-mingw

library/std/src/sys/thread_local/os.rs

@@ -28,9 +28,7 @@ pub macro thread_local_inner {
         // user provided type or type alias with a matching name. Please update the shadowing test
         // in `tests/thread.rs` if these types are renamed.
         unsafe {
-            // Inlining does not work on windows-gnu due to linking errors around
-            // dllimports. See https://github.com/rust-lang/rust/issues/109797.
-            $crate::thread::LocalKey::new(#[cfg_attr(windows, inline(never))] |init| {
+            $crate::thread::LocalKey::new(|init| {
                 static VAL: $crate::thread::local_impl::Storage<$t>
                     = $crate::thread::local_impl::Storage::new();
                 VAL.get(init, __init)