--- libmalloc/libmalloc-715.140.5/tests/malloc_heap_check_test.c
+++ /dev/null
@@ -1,67 +0,0 @@
-//
-//  malloc_heap_check_test.c
-//  libsystem_malloc
-//
-//  Created by Kim Topley on 4/26/18.
-//
-#include <stdlib.h>
-#include <darwintest.h>
-
-T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true), T_META_TAG_XZONE, T_META_TAG_VM_NOT_PREFERRED);
-
-static void
-run_heap_test(int iterations)
-{
-	const int MAX_POINTERS = 1024;
-	void **pointers = (void **)calloc(MAX_POINTERS, sizeof(void *));
-	for (int iteration = 0; iteration < iterations; iteration++) {
-		int index = rand() % MAX_POINTERS;
-		size_t size = 1 << (rand() % 20);
-		if (pointers[index]) {
-			if (rand() % 4 == 0) {
-				pointers[index] = realloc(pointers[index], size);
-				continue;
-			}
-			free(pointers[index]);
-			pointers[index] = NULL;
-		}
-		void * pointer = malloc(size);
-		T_QUIET; T_ASSERT_NOTNULL(pointer, "Allocation failed for %llu\n",
-				(uint64_t)size);
-		pointers[index] = pointer;
-	}
-	for (int i = 0; i < MAX_POINTERS; i++) {
-		free(pointers[i]);
-	}
-	free(pointers);
-}
-
-T_DECL(malloc_heap_check_no_nano, "malloc heap checking (no Nano)",
-	   T_META_ENVVAR("MallocCheckHeapStart=1"),
-	   T_META_ENVVAR("MallocCheckHeapEach=1"),
-	   T_META_ENVVAR("MallocNanoZone=0"))
-{
-	run_heap_test(100000);
-
-	// If we get here without crashing, we pass.
-	T_PASS("Heap check succeeded");
-}
-T_DECL(malloc_heap_check_nano, "malloc heap checking (with Nano)",
-	   T_META_ENVVAR("MallocCheckHeapStart=1"),
-	   T_META_ENVVAR("MallocCheckHeapEach=1"),
-	   T_META_ENVVAR("MallocNanoZone=1"))
-{
-	run_heap_test(100000);
-
-	// If we get here without crashing, we pass.
-	T_PASS("Heap check succeeded");
-}
-
-T_DECL(malloc_simple_stack_logging, "Test MallocSimpleStackLogging=1",
-		T_META_ENVVAR("MallocSimpleStackLogging=1"))
-{
-	run_heap_test(1000);
-
-	T_PASS("Success");
-}
-