lxd/device/nic/bridged: Fixes bug that leaks ebtables filters
lxd/device/nic/bridged: Fixes bug that leaks ebtables filters

When using static IPs with an unmanaged bridge parent.

Because there is no DHCP allocation in dnsmasq, previously the attempt to remove the rules based on the device's static IPs was not attempted.

Signed-off-by: Thomas Parrott <6b778ce645fb0e3dde76d79eccad490955b1ae74@canonical.com>

stgraber/lxd,lxc/lxd,hallyn/lxd,stgraber/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,atxwebs/lxd,Skarlso/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,hallyn/lxd,Skarlso/lxd,atxwebs/lxd,stgraber/lxd,mjeanson/lxd,hallyn/lxd,lxc/lxd,Skarlso/lxd,atxwebs/lxd,lxc/lxd,mjeanson/lxd,lxc/lxd,hallyn/lxd,lxc/lxd,mjeanson/lxd,hallyn/lxd,atxwebs/lxd,stgraber/lxd,Skarlso/lxd