fix "unused" marker in utility code

Cython/Utility/ObjectHandling.c

@@ -486,7 +486,7 @@ static CYTHON_INLINE int __Pyx_PyObject_SetSlice(PyObject* obj, PyObject* value,
 {{endif}}
         Py_ssize_t cstart, Py_ssize_t cstop,
         PyObject** _py_start, PyObject** _py_stop, PyObject** _py_slice,
-        int has_cstart, int has_cstop, CYTHON_NCP_UNUSED int wraparound) {
+        int has_cstart, int has_cstop, CYTHON_UNUSED int wraparound) {
 #if CYTHON_COMPILING_IN_CPYTHON
     PyMappingMethods* mp;
 #if PY_MAJOR_VERSION < 3