'Remove sg_member entries.'

def _remove_sg_members(self, remote_sgs_to_remove):

    ipv4_sec_group_set = remote_sgs_to_remove.get(constants.IPv4)
    ipv6_sec_group_set = remote_sgs_to_remove.get(constants.IPv6)
    for sg_id in (ipv4_sec_group_set & ipv6_sec_group_set):
        if (sg_id in self.sg_members):
            del self.sg_members[sg_id]
