diff --git a/std/src/sys/thread_local/guard/windows.rs b/std/src/sys/thread_local/guard/windows.rs index f6cd457046ffc..e08ac44e1af88 100644 --- a/std/src/sys/thread_local/guard/windows.rs +++ b/std/src/sys/thread_local/guard/windows.rs @@ -78,19 +78,6 @@ pub fn enable() { pub static CALLBACK: unsafe extern "system" fn(*mut c_void, u32, *mut c_void) = tls_callback; unsafe extern "system" fn tls_callback(_h: *mut c_void, dw_reason: u32, _pv: *mut c_void) { - // See comments above for what this is doing. Note that we don't need this - // trickery on GNU windows, just on MSVC. - #[cfg(all(target_env = "msvc", not(target_thread_local)))] - { - extern "C" { - static _tls_used: u8; - } - - unsafe { - ptr::from_ref(&_tls_used).read_volatile(); - } - } - if dw_reason == c::DLL_THREAD_DETACH || dw_reason == c::DLL_PROCESS_DETACH { #[cfg(target_thread_local)] unsafe {