--- libmalloc/libmalloc-715.140.5/src/msl_lite_support.c
+++ /dev/null
@@ -1,73 +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@
- */
-
-/*
- * Support for stack logging lite in the malloc stack logging library. This code
- * will go away when MSL lite no longer requires its own zone.
- */
-#ifndef MALLOC_ENABLE_MSL_LITE_SPI
-#define MALLOC_ENABLE_MSL_LITE_SPI 1
-#endif // MALLOC_ENABLE_MSL_LITE_SPI
-
-#include "internal.h"
-
-// These definitions are here and not in a header file because all of this code
-// is intended to go away very soon.
-extern malloc_zone_t **malloc_zones;
-extern malloc_zone_t* lite_zone;
-extern boolean_t has_default_zone0(void);
-
-static void
-insert_msl_lite_zone(malloc_zone_t *zone)
-{
-	lite_zone = zone;
-	malloc_slowpath_update();
-}
-
-static malloc_zone_t *
-get_global_helper_zone(void)
-{
-	return malloc_zones[0];  // TODO: this is broken
-}
-
-// This struct contains many more function pointers than the ones given here. MSL previously used
-// those when it called into libmalloc to create a lite zone.
-// Now that MSL creates a lite zone itself, we don't need to provide those other function pointers.
-static struct _malloc_msl_lite_hooks_s malloc_msl_lite_hooks = {
-	.has_default_zone0      = &has_default_zone0,
-	.insert_msl_lite_zone   = &insert_msl_lite_zone,
-	.get_global_helper_zone = &get_global_helper_zone,
-};
-
-/*
- * Copies the malloc library's _malloc_msl_lite_hooks_t structure to a given
- * location. We pass the structure size to allow the structure to
- * grow. Since this is a temporary arrangement, we don't need to worry about
- * pointer authentication here or in the _malloc_msl_lite_hooks_t structure itself.
- */
-MALLOC_NOEXPORT
-void
-set_msl_lite_hooks(set_msl_lite_hooks_callout_t callout)
-{
-	callout(&malloc_msl_lite_hooks, sizeof(malloc_msl_lite_hooks));
-}