Index: Objects/obmalloc.c
===================================================================
--- Objects/obmalloc.c	(révision 66572)
+++ Objects/obmalloc.c	(copie de travail)
@@ -673,13 +673,6 @@
 	 (uptr)(P) - arenas[(POOL)->arenaindex].address < (uptr)ARENA_SIZE && \
 	 arenas[(POOL)->arenaindex].address != 0)
 
-
-/* This is only useful when running memory debuggers such as
- * Purify or Valgrind.  Uncomment to use.
- *
- */
-#define Py_USING_MEMORY_DEBUGGER
-
 #ifdef Py_USING_MEMORY_DEBUGGER
 
 /* Py_ADDRESS_IN_RANGE may access uninitialized memory by design