Supply CT list in procfs (OBSOLETE)
CONFIG_NF_CONNTRACK_PROCFS:
This option enables for the list of known conntrack entries
to be shown in procfs under net/netfilter/nf_conntrack. This
is considered obsolete in favor of using the conntrack(8)
tool which uses Netlink.

In current kernels the procfs interface is obsolete. Could netdata query the conntrack data in an different way?