remove stale info in null modem driver docs
remove stale info in null modem driver docs

RishiGupta12/SerialPundit,RishiGupta12/serial-communication-manager,akuhtz/serial-communication-manager,RishiGupta12/serial-communication-manager,akuhtz/serial-communication-manager,RishiGupta12/SerialPundit,RishiGupta12/SerialPundit,RishiGupta12/serial-communication-manager,RishiGupta12/SerialPundit,akuhtz/serial-communication-manager,akuhtz/serial-communication-manager