Frank Goossens on "[Plugin: Autoptimize] Dequeueing Open Sans from WP core"

hi joshuiaz;
wp core as such only loads google fonts on the admin-pages, where AO isn't active anyhow. but the theme(s) that ship with wp core indeed also introduce google fonts.

now I'm not sure what theme you're using, but I'm on twentytwelve and in my child theme's functions.php I use this to dequeue;

function twtwFFWD_queuing() {
        wp_dequeue_style( 'twentytwelve-fonts' );
}
add_action('wp_enqueue_scripts', 'twtwFFWD_queuing', 11 );

hope this helps,
frank