Tests handle muted `delete_arp_entries` log lines.
Tests handle muted `delete_arp_entries` log lines.

Again, the way the tests go through debug logs makes us uncomfortable.

[#149584947](https://www.pivotaltracker.com/story/show/149584947)

Signed-off-by: James Young <9a444a4c06c3f9735f2e8ac5c0dcccd82c90ce93@pivotal.io>

barthy1/bosh,barthy1/bosh,barthy1/bosh,barthy1/bosh