remove PyBytes_Format from header
diff --git a/Include/bytesobject.h b/Include/bytesobject.h
index 1c73fde..529b028 100644
--- a/Include/bytesobject.h
+++ b/Include/bytesobject.h
@@ -58,7 +58,6 @@
PyAPI_FUNC(void) PyBytes_Concat(PyObject **, PyObject *);
PyAPI_FUNC(void) PyBytes_ConcatAndDel(PyObject **, PyObject *);
PyAPI_FUNC(int) _PyBytes_Resize(PyObject **, Py_ssize_t);
-PyAPI_FUNC(PyObject *) PyBytes_Format(PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) _PyBytes_FormatLong(PyObject*, int, int,
int, char**, int*);
PyAPI_FUNC(PyObject *) PyBytes_DecodeEscape(const char *, Py_ssize_t,