[Observium] overall_traffic on front page, showing peering when peering is disabled.

I have transit, customer, and core traffic interfaces descriptions setup and working. No peering interfaces have been defined. Peering interfaces menu items are disabled with $config['int_peering'] = 0;

However, when overall_traffic is added to the $config['frontpage']['order'] array, "Overall Peering Traffic Today" and "Overall Transit & Peering Traffic This Month" headers are displayed with broken image placeholders that link back to the url/iftype/type=peering/ and url/iftype/type=peering%2Ctransit/ respectively.

Not a big issue, but from a consistency standpoint, it would make sense to disable the overall peering traffic views if $config['int_peering'] = 0; is set.

Matt