parsers.c: parse_manifest: fixing refcount of flags

When flags was DECREF'ed, scope was referencing to the outer variable,
outside of the block.
It was in fact always NULL: the real Python object was never decref'ed.

mercurial/parsers.c

@@ -92,8 +92,6 b' static PyObject *parse_manifest(PyObject'
 			goto bail;
 
 		if (nlen > 40) {
-			PyObject *flags;
-
 			flags = PyString_FromStringAndSize(zero + 41,
 							   nlen - 40);
 			if (!flags)