I'm using blogs mu theme and I'm looking for a simple way

I'm using blogs mu theme and I'm looking for a simple way (via the theme) to remove the meta data when creating a page. For example the page I've created has By "the publisher of the page" and the date of when is was published. I've tried all template types and still, it publishes the meta data.
If it's not possible to do this via the theme, then how can I do this using the child theme files?