checkfeature: cleanup macros is_netnsid_aware
checkfeature: cleanup macros is_netnsid_aware

Signed-off-by: Christian Brauner <48455ab3070520a2d174545c7239d6d0fabd9a83@ubuntu.com>

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