npf_ruleset_remove
int npf_ruleset_remove(int, const char *, uint64_t);
error = npf_ruleset_remove(rlset, ruleset_name, id);
int npf_ruleset_remove(npf_ruleset_t *, const char *, uint64_t);
error = npf_ruleset_remove(fd, ruleset_name, rule_id);
error = npf_ruleset_remove(rlset, "l2-ruleset", id);
error = npf_ruleset_remove(rlset, "test-rules", id);