How to prevent Google fonts loading.

To prevent all Google Fonts loading you need first to unset all google fonts set in the typography settings. 
Go to wp-admin>Lush>Typography
And remove all google font by clicking on the reset button here or by selecting a font system as "arial". 

Once it is done, please activate the lush child theme and insert this code in the function.php file.

function lush_dequeue_googlefonts() {

    wp_dequeue_style( 'font-opensans' );
    wp_dequeue_style( 'font-josefin' );

add_action( 'wp_enqueue_scripts', 'lush_dequeue_googlefonts', 12);