I am trying to disable the Twenty Twelve header functionality in a child theme. What happens is if I uncheck the " Show header text with your image." box under "Appearance"->"Header", the theme injects a bunch of CSS into my header that hides the site title and description.
I have tried variations of
remove_action ('after_setup_theme','twentytwelve_custom_header_setup'); in my child theme's functions.php file to no avail.
How can I disable the twentytwelve_custom_header_setup function from my child theme?