Remove dashicons script for non logged in users - WordPress

functions.php

// Add it in the end of your functions.php file in the child theme

// Remove dashicons in frontend for unauthenticated users
add_action( 'wp_enqueue_scripts', 'rs_dequeue_dashicons' );

function rs_dequeue_dashicons() {
    if ( ! is_user_logged_in() ) {
        wp_deregister_style( 'dashicons' );
    }
}