zebra: clear ZEBRA_IFC_CONFIGURED on "no ipv6 addr"

To match the semantics of IPv4, the ZEBRA_IFC_CONFIGURED flag
should be cleared when an IPv6 connected is uninstalled via
vty.

Signed-off-by: Christian Franke <chris@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
1 file changed