Hide H2 Title from BACS Payment Method in Email Templates - Update Secure

I will hide/remove the H2 title from my bacs payment method in my email templates. An update secure way would be awesome. Any idea? This H2 header gets called for example in the ...plugins/woocommerce/includes/gateways/bacs/class-wc-gateway-bacs.php file:

    /**
 * Get bank details and place into a list format
 */
private function bank_details( $order_id = '' ) {
    if ( empty( $this->account_details ) ) {
        return;
    }

    echo '<h2>' . __( 'Our Bank Details', 'woocommerce' ) . '</h2>' . PHP_EOL;

    $bacs_accounts = apply_filters( 'woocommerce_bacs_accounts', ...and so on

Thank you