'Removed a network interface from a load balancer
:param  load_balancer: The load balancer you
wish to remove the network interface from.
:type:  load_balancer: :class:`ProfitBricksLoadBalancer`
:param  network_interface: The network interface
being removed.
:type:  network_interface: :class:`ProfitBricksNetworkInterface`
:rtype  ``bool``'

def ex_remove_nic_from_load_balancer(self, load_balancer, network_interface):

    action = ((load_balancer.href + '/balancednics/') + network_interface.id)
    self.connection.request(action=action, method='DELETE', with_full_url=True)
    return True
