bpo-42519: Replace PyObject_MALLOC() with PyObject_Malloc() (GH-23587)

No longer use deprecated aliases to functions:

* Replace PyObject_MALLOC() with PyObject_Malloc()
* Replace PyObject_REALLOC() with PyObject_Realloc()
* Replace PyObject_FREE() with PyObject_Free()
* Replace PyObject_Del() with PyObject_Free()
* Replace PyObject_DEL() with PyObject_Free()
diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index 0257295..0b0b8f9 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -669,7 +669,7 @@ code_dealloc(PyCodeObject *co)
         PyObject_GC_Del(co->co_zombieframe);
     if (co->co_weakreflist != NULL)
         PyObject_ClearWeakRefs((PyObject*)co);
-    PyObject_DEL(co);
+    PyObject_Free(co);
 }
 
 static PyObject *