Disalbe X WP Title Filter
add_action('after_setup_theme', 'remove_x_title', 10);
function remove_x_title() {
remove_filter( 'wp_title', 'x_wp_title' );
}
add_action('after_setup_theme', 'remove_x_title', 10);
function remove_x_title() {
remove_filter( 'wp_title', 'x_wp_title' );
}