Commit acd4969546 for openssl.org

commit acd496954682a4f70f6e33820393b1e3ea2fdf3b
Author: Milan Broz <gmazyland@gmail.com>
Date:   Wed Apr 22 15:25:31 2026 +0200

    Remove unused ossl_crypto_mem_barrier in old Windows threads

    This function is unused and only causes missing prototype
    warning.

    Reviewed-by: Tomas Mraz <tomas@openssl.foundation>
    Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
    Reviewed-by: Norbert Pocs <norbertp@openssl.org>
    MergeDate: Thu Apr 30 11:42:26 2026
    (Merged from https://github.com/openssl/openssl/pull/30941)

diff --git a/crypto/thread/arch/thread_win.c b/crypto/thread/arch/thread_win.c
index 3240054702..b26a1d917a 100644
--- a/crypto/thread/arch/thread_win.c
+++ b/crypto/thread/arch/thread_win.c
@@ -590,10 +590,4 @@ void ossl_crypto_condvar_free(CRYPTO_CONDVAR **cv)
 }

 #endif
-
-void ossl_crypto_mem_barrier(void)
-{
-    MemoryBarrier();
-}
-
 #endif