GH-127705: Don't call _Py_ForgetReference before _Py_Dealloc (GH-131508)

Author: markshannon

Include/internal/pycore_object.h

@@ -445,9 +445,6 @@ static inline void Py_DECREF_MORTAL(const char *filename, int lineno, PyObject *
         _Py_DECREF_DecRefTotal();
     }
     if (--op->ob_refcnt == 0) {
-#ifdef Py_TRACE_REFS
-        _Py_ForgetReference(op);
-#endif
         _Py_Dealloc(op);
     }
 }