SO this Amendment and its associated Amending process is still active and could become an Amendment to our Constitution (even today) IF it were to recieve the necessary number of endorsement from the required number of states.
If it were to become an Amendment, then there could be a process begun to remove it, like the prohibition Amendment. But as it is, for now, it is technically still active "On The Books" waiting for the necessary number of state to ratify it.