Remove atomic assign in list

Author: DinoV

Include/cpython/listobject.h

@@ -44,11 +44,7 @@ PyList_SET_ITEM(PyObject *op, Py_ssize_t index, PyObject *value) {
     PyListObject *list = _PyList_CAST(op);
     assert(0 <= index);
     assert(index < list->allocated);
-#ifdef Py_GIL_DISABLED
-    _Py_atomic_store_ptr_relaxed(&list->ob_item[index], value);
-#else
     list->ob_item[index] = value;
-#endif
 }
 #define PyList_SET_ITEM(op, index, value) \
     PyList_SET_ITEM(_PyObject_CAST(op), (index), _PyObject_CAST(value))