forked from amazingfate/loongoffice
...it had been deprecated at least since late OOo times, with the css.sheet.NamedRangeFlag constant group as replacement. (UNOIDL identifiers starting with an underscore are illegal. It would be good to be able to enforce that in code parsing UNOIDL files, but some existing identifiers like this one violate that.) Change-Id: Ib8067dee47cec46356065b7b70cc6b47b97e5bc0