--- libmalloc/libmalloc-409.81.2/src/locking.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (c) 2015 Apple Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-#ifndef __LOCKING_H
-#define __LOCKING_H
-
-#if OS_UNFAIR_LOCK_INLINE
-#define os_unfair_lock_lock_with_options(lock, options) \
-		os_unfair_lock_lock_with_options_inline(lock, options)
-#define os_unfair_lock_trylock(lock) \
-		os_unfair_lock_trylock_inline(lock)
-#define os_unfair_lock_unlock(lock) \
-		os_unfair_lock_unlock_inline(lock)
-#endif // OS_UNFAIR_LOCK_INLINE
-
-typedef os_unfair_lock _malloc_lock_s;
-#define _MALLOC_LOCK_INIT OS_UNFAIR_LOCK_INIT
-
-__attribute__((always_inline))
-static inline void
-_malloc_lock_init(_malloc_lock_s *lock) {
-    *lock = OS_UNFAIR_LOCK_INIT;
-}
-
-MALLOC_ALWAYS_INLINE
-static inline void
-_malloc_lock_lock(_malloc_lock_s *lock) {
-	return os_unfair_lock_lock_with_options(lock, OS_UNFAIR_LOCK_ADAPTIVE_SPIN |
-			OS_UNFAIR_LOCK_DATA_SYNCHRONIZATION);
-}
-
-MALLOC_ALWAYS_INLINE
-static inline bool
-_malloc_lock_trylock(_malloc_lock_s *lock) {
-    return os_unfair_lock_trylock(lock);
-}
-
-MALLOC_ALWAYS_INLINE
-static inline void
-_malloc_lock_unlock(_malloc_lock_s *lock) {
-    return os_unfair_lock_unlock(lock);
-}
-
-MALLOC_ALWAYS_INLINE
-static inline void
-_malloc_lock_assert_owner(_malloc_lock_s *lock) {
-	os_unfair_lock_assert_owner(lock);
-}
-
-#endif // __LOCKING_H