pythongh-116738: move _PyMem_FreeDelayed to being private but exported

Author: SonicField

Include/pymem.h

@@ -49,7 +49,6 @@ PyAPI_FUNC(void *) PyMem_Malloc(size_t size);
 PyAPI_FUNC(void *) PyMem_Calloc(size_t nelem, size_t elsize);
 PyAPI_FUNC(void *) PyMem_Realloc(void *ptr, size_t new_size);
 PyAPI_FUNC(void) PyMem_Free(void *ptr);
-PyAPI_FUNC(void) PyMem_FreeDelayed(void *ptr);
 
 /*
  * Type-oriented memory interface

Modules/arraymodule.c

@@ -204,7 +204,7 @@ array_free_items2(char* items, bool use_qsbr)
     }
     _PyArrayArray *array = _Py_CONTAINER_OF(items, _PyArrayArray, ob_item);
     if (use_qsbr) {
-        PyMem_FreeDelayed(array);
+        _PyMem_FreeDelayed(array);
     }
     else {
         PyMem_Free(array);

Objects/obmalloc.c

@@ -1148,19 +1148,13 @@ free_delayed(uintptr_t ptr)
 #endif
 }
 
-void
+PyAPI_FUNC(void)
 _PyMem_FreeDelayed(void *ptr)
 {
     assert(!((uintptr_t)ptr & 0x01));
     free_delayed((uintptr_t)ptr);
 }
 
-void
-PyMem_FreeDelayed(void *ptr)
-{
-    _PyMem_FreeDelayed(ptr);
-}
-
 void
 _PyObject_FreeDelayed(void *ptr)
 {