--- Libc/Libc-583/gen/scalable_malloc.h
+++ Libc/Libc-391/gen/scalable_malloc.h
@@ -31,24 +31,9 @@
     // do not protect postlude page
 #define SCALABLE_MALLOC_DO_SCRIBBLE		(1 << 3)
     // write 0x55 onto free blocks
-#define SCALABLE_MALLOC_ABORT_ON_ERROR (1 << 4)
-    // call abort() on any malloc error, such as double free or out of memory.
-#define SCALABLE_MALLOC_PURGEABLE (1 << 5)
-    // allocate objects such that they may be used with VM purgability APIs
-#define SCALABLE_MALLOC_ABORT_ON_CORRUPTION (1 << 6)
-    // call abort() on malloc errors, but not on out of memory.
 
 extern malloc_zone_t *create_scalable_zone(size_t initial_size, unsigned debug_flags);
     /* Create a new zone that scales for small objects or large objects */
-
-extern malloc_zone_t *create_purgeable_zone(size_t initial_size, malloc_zone_t *malloc_default_zone, unsigned debug_flags);
-    /* Create a new zone that supports malloc_make{un}purgeable() discipline. */
-
-extern malloc_zone_t *create_legacy_scalable_zone(size_t initial_size, unsigned debug_flags);
-    /*
-     * For use by CheckFix: create a new zone whose behavior is, apart from
-     * the use of death-row and per-CPU magazines, that of Leopard.
-     */
 
 /*****	Private API for debug and performance tools	********/