Unable to dequeue / deregister default stylesheets

Hi.
I’m trying to deregister / dequeue some of the default stylesheets of the plugin from the functions.php of my theme but I’m unable and I don’t know what I’m doing wrong.
The code I’m using:

function deregister_su_styles() {
	wp_dequeue_style( 'su-box-shortcodes' );
	wp_deregister_style( 'su-box-shortcodes' );
	wp_dequeue_style( 'su-content-shortcodes' );
	wp_deregister_style( 'su-content-shortcodes' );
}
add_action( 'wp_print_styles', 'deregister_su_styles', 100 );

After reloading content-shortcodes.css?ver=5.0.2 and box-shortcodes.css?ver=5.0.2 are still being loaded.

TIA. Regards.