Deletes this bridge.

def delete(self):
        """
        Deletes this bridge.
        """

        if self._hypervisor and self in self._hypervisor.devices:
            self._hypervisor.devices.remove(self)
        if self._hypervisor and not self._hypervisor.devices:
            yield from self._hypervisor.send('nio_bridge delete "{}"'.format(self._name))