pmt: revert 7f8090b

include/libgnulib/simple-atomic.h

@@ -1,49 +0,0 @@
-/* Simple atomic operations for multithreading.
-   Copyright (C) 2021-2024 Free Software Foundation, Inc.
-
-   This file is free software: you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   This file is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-/* Written by Bruno Haible <bruno@clisp.org>, 2021.  */
-
-#ifndef _SIMPLE_ATOMIC_H
-#define _SIMPLE_ATOMIC_H
-
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Guarantees that memory stores that are in code before this call
-   are finished before this call, and that memory loads that are in code
-   after this call are started after this call.  */
-extern void memory_barrier (void);
-
-/* Stores NEWVAL in *VP if the old value *VP is == CMP.
-   Returns the old value.  */
-extern unsigned int atomic_compare_and_swap (unsigned int volatile *vp,
-                                             unsigned int cmp,
-                                             unsigned int newval);
-
-/* Stores NEWVAL in *VP if the old value *VP is == CMP.
-   Returns the old value.  */
-extern uintptr_t atomic_compare_and_swap_ptr (uintptr_t volatile *vp,
-                                              uintptr_t cmp,
-                                              uintptr_t newval);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _SIMPLE_ATOMIC_H */