fq_remove_flows
bpf_for_each_map_elem(&fq_nonprio_flows, fq_remove_flows, &cb_ctx, 0);
bpf_for_each_map_elem(&fq_nonprio_flows, fq_remove_flows, &rf_ctx, 0);
bpf_for_each_map_elem(&fq_prio_flows, fq_remove_flows, &rf_ctx, 0);