docs: def _process_removed_port(self, device):
          """Process the removed ports."""
          LOG.debug("Trying to remove the port %r", device)
          self._update_port_status_cache(device, device_bound=False)
          self._port_unbound(device, vnic_deleted=True)
  
          LOG.debug("The port was successfully removed.")
          self._removed_ports.discard(device)