Add a withoutIDs method to PhabricatorDaemonLogQuery.

Summary: Add a method to PhabricatorDaemonLogQuery to exclude IDs from the results.

Test Plan: Thought long and hard.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9606