@abc.abstractmethod<EOL><INDENT>def teardown_logical_port_connectivity(self, context, port_db,<EOL>hosting_device_id):<DEDENT>
pass<EOL>
Removes connectivity for a logical port.

        Performs the configuration tasks needed in the infrastructure
        to disconnect a logical port.

        Example: Remove a VLAN that is trunked to a service VM.

        :param context: Neutron api request context.
        :param port_db: Neutron port about to be deleted.
        :param hosting_device_id: ID of the device where this port is attached.