'Deletes a VPC subnet.
:param      subnet: The subnet to delete
:type       subnet: :class:`.EC2NetworkSubnet`
:rtype:     ``bool``'

def ex_delete_subnet(self, subnet):

    params = {'Action': 'DeleteSubnet', 'SubnetId': subnet.id}
    res = self.connection.request(self.path, params=params).object
    return self._get_boolean(res)
