'Delete an IP block
:param  ip_block: The IP block you wish to delete.
:type:  ip_block: :class:`ProfitBricksIPBlock`
:rtype  ``bool``'

def ex_delete_ip_block(self, ip_block):

    self.connection.request(action=ip_block.href, method='DELETE', with_full_url=True)
    return True
