Hey Fran,
first of all, thank you for using Kabuki!
Removing the post meta information on blog has not been envisaged as a back-end setting, yet you can achieve that via CSS, by adding this code into the theme’s «style.css» file:
.post-meta { display: none; }
I highly recommend doing this (and other customizations) via a child theme.
Sincerely,
Andrii / Satori Studio