xfrd_del_slave_zone
xfrd_del_slave_zone(xfrd, dname);
xfrd_del_slave_zone(xfrd, dname);
xfrd_del_slave_zone(xfrd, dname);
xfrd_del_slave_zone(xfrd,
xfrd_del_slave_zone(xfrd,
xfrd_del_slave_zone(xfrd, dname);
xfrd_del_slave_zone( xfrd
void xfrd_del_slave_zone(xfrd_state_type* xfrd, const dname_type* dname);