use _PyLong_AsByteArray on all pythons

Author: BobTheBuidler

mypyc/lib-rt/int_ops.c

@@ -605,21 +605,6 @@ PyObject *CPyTagged_ToBytes(CPyTagged self, Py_ssize_t length, PyObject *byteord
     return result;
 }
 
-#if PY_VERSION_HEX >= 0x030C0000
-// If not declared, declare it ourselves
-#ifndef PyLong_AsByteArray
-PyAPI_FUNC(int) PyLong_AsByteArray(
-    PyLongObject* v,
-    unsigned char* bytes,
-    size_t n,
-    int little_endian,
-    int is_signed
-);
-#endif
-    #define CPy_PyLong_AsByteArray PyLong_AsByteArray
-#else
-    #define CPy_PyLong_AsByteArray _PyLong_AsByteArray
-#endif
 
 // Helper for CPyLong_ToBytes (Python 3.2+)
 PyObject *CPyLong_ToBytes(PyObject *v, Py_ssize_t length, const char *byteorder, int signed_flag) {
@@ -639,7 +624,7 @@ PyObject *CPyLong_ToBytes(PyObject *v, Py_ssize_t length, const char *byteorder,
         PyErr_SetString(PyExc_ValueError, "byteorder must be either 'little' or 'big'");
         return NULL;
     }
-    int res = CPy_PyLong_AsByteArray((PyLongObject *)v, bytes, length, little_endian, signed_flag);
+    int res = _PyLong_AsByteArray((PyLongObject *)v, bytes, length, little_endian, signed_flag);
     if (res < 0) {
         PyMem_Free(bytes);
         return NULL;