How to dequeue Menu Image CSS
Add the code below to the functions.php of your child theme.
If you don’t have a child theme it’s recommended to create one to avoid losing the code in a theme update.
add_action( ‘wp_enqueue_scripts’, ‘dequeue_menu_image_style’, 11 );
function dequeue_menu_image_style() {
wp_dequeue_style(‘menu-image’);
}