Remove Designer Name in AI

I have an Adobe Illustrator file that still displays the original designer’s name when opened. All I need is that attribution removed—whether it sits on a visible layer, inside document metadata, or in an artboard note. Please make no other visual or color changes; the artwork itself must stay exactly as it is. Once the name is gone, send the cleaned-up file back to me as a native .ai document so I can archive and redistribute it without the extra credit line.