Remove sys._clear_type_descriptors

Author: encukou

Python/clinic/sysmodule.c.h

@@ -2641,46 +2641,6 @@ sys__baserepl_impl(PyObject *module)
     Py_RETURN_NONE;
 }
 
-/*[clinic input]
-sys._clear_type_descriptors
-
-    type: object(subclass_of='&PyType_Type')
-    /
-
-Private function for clearing certain descriptors from a type's dictionary.
-
-See gh-135228 for context.
-[clinic start generated code]*/
-
-static PyObject *
-sys__clear_type_descriptors_impl(PyObject *module, PyObject *type)
-/*[clinic end generated code: output=5ad17851b762b6d9 input=dc536c97fde07251]*/
-{
-    PyTypeObject *typeobj = (PyTypeObject *)type;
-    if (_PyType_HasFeature(typeobj, Py_TPFLAGS_IMMUTABLETYPE)) {
-        PyErr_SetString(PyExc_TypeError, "argument is immutable");
-        return NULL;
-    }
-    PyObject *dict = _PyType_GetDict(typeobj);
-    PyObject *dunder_dict = NULL;
-    if (PyDict_Pop(dict, &_Py_ID(__dict__), &dunder_dict) < 0) {
-        return NULL;
-    }
-    PyObject *dunder_weakref = NULL;
-    if (PyDict_Pop(dict, &_Py_ID(__weakref__), &dunder_weakref) < 0) {
-        PyType_Modified(typeobj);
-        Py_XDECREF(dunder_dict);
-        return NULL;
-    }
-    PyType_Modified(typeobj);
-    // We try to hold onto a reference to these until after we call
-    // PyType_Modified(), in case their deallocation triggers somer user code
-    // that tries to do something to the type.
-    Py_XDECREF(dunder_dict);
-    Py_XDECREF(dunder_weakref);
-    Py_RETURN_NONE;
-}
-
 
 /*[clinic input]
 sys._is_gil_enabled -> bool
@@ -2878,7 +2838,6 @@ static PyMethodDef sys_methods[] = {
     SYS__STATS_DUMP_METHODDEF
 #endif
     SYS__GET_CPU_COUNT_CONFIG_METHODDEF
-    SYS__CLEAR_TYPE_DESCRIPTORS_METHODDEF
     SYS__IS_GIL_ENABLED_METHODDEF
     SYS__DUMP_TRACELETS_METHODDEF
     {NULL, NULL}  // sentinel