Hello mstudio,
In our theme SuperMag the metadata like category, date and author can be disable using child theme or some Custom CSS. You can try it by creating Child Theme https://codex.wordpress.org/Child_Themes.
If you are interested in premium theme, it has one click option to enable/disable each and every metadata like date, author, category etc. You can check our pro theme here http://www.acmethemes.com/themes/supermagpro/
Best Regards,
AcmeThemes