Issue #15767: Revert 3a50025f1900 for ModuleNotFoundError

Include/pyerrors.h

@@ -268,9 +268,6 @@ PyAPI_FUNC(PyObject *) PyErr_SetExcFromWindowsErr(PyObject *, int);
 
 PyAPI_FUNC(PyObject *) PyErr_SetExcWithArgsKwargs(PyObject *, PyObject *,
     PyObject *);
-
-PyAPI_FUNC(PyObject *) PyErr_SetImportErrorSubclass(PyObject *, PyObject *,
-    PyObject *, PyObject *);
 PyAPI_FUNC(PyObject *) PyErr_SetImportError(PyObject *, PyObject *,
     PyObject *);