Also, it occurs to me, by default, Redux should not be automatically attempting to update Google fonts from the GitHub repo. My guess is that it happened when the update prompt showed, and someone clicked the ‘auto-update’ option. You can turn that off, but you’d have to update that option.
In a child theme, add update_option( 'auto_update_redux_google_fonts', false );
This will disable the automatic checking of the Google fonts repo. Then you can add the CSS to hide the prompt. Regardless, I’ll still add a filter in the next version, which may be soon.