--- libmalloc/libmalloc-374.100.5/src/nano_zone_common.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (c) 2018 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 __NANO_ZONE_COMMON_H
-#define __NANO_ZONE_COMMON_H
-
-#define NANO_MAX_SIZE			256 /* Buckets sized {16, 32, 48, ..., 256} */
-#define SHIFT_NANO_QUANTUM		4
-#define NANO_REGIME_QUANTA_SIZE	(1 << SHIFT_NANO_QUANTUM)	// 16
-#define NANO_QUANTA_MASK		(NANO_REGIME_QUANTA_SIZE - 1)
-#define NANO_SIZE_CLASSES		(NANO_MAX_SIZE/NANO_REGIME_QUANTA_SIZE)
-
-#if TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR
-
-// Nanozone follows the shared region.
-#define SHIFT_NANO_SIGNATURE	29
-#define NANOZONE_SIGNATURE_BITS	35
-#define NANOZONE_BASE_REGION_ADDRESS (SHARED_REGION_BASE + SHARED_REGION_SIZE)
-#define NANOZONE_SIGNATURE (NANOZONE_BASE_REGION_ADDRESS >> SHIFT_NANO_SIGNATURE)
-
-#else // TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR
-
-#define SHIFT_NANO_SIGNATURE	44
-#define NANOZONE_SIGNATURE_BITS	20
-#define NANOZONE_SIGNATURE		0x6ULL
-#define NANOZONE_BASE_REGION_ADDRESS (NANOZONE_SIGNATURE << SHIFT_NANO_SIGNATURE)
-
-#endif // TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR
-
-static MALLOC_INLINE size_t
-_nano_common_good_size(size_t size)
-{
-	return (size <= NANO_REGIME_QUANTA_SIZE) ? NANO_REGIME_QUANTA_SIZE
-		: (((size + NANO_REGIME_QUANTA_SIZE - 1) >> SHIFT_NANO_QUANTUM) << SHIFT_NANO_QUANTUM);
-}
-
-#endif // __NANO_ZONE_COMMON_H