Remove ip address from recovery ui

void EthernetRecoveryUI::SetTitle(const std::vector<std::string>& lines) {

  ScreenRecoveryUI::SetTitle(lines);

  // Append IP address, if any

  for (auto it = ipv4_addresses_.begin(); it != ipv4_addresses_.end(); ++it) {

    title_lines_.push_back("IPv4 address - " + *it);

  }

  if (!ipv6_linklocal_address_.empty()) {

    title_lines_.push_back("IPv6 link-local address - " + ipv6_linklocal_address_);

  }

}

void EthernetRecoveryUI::AddIPv4Address(const std::string& address) {