Remove some ancient daemon log code

Summary:
Ref T13253. Long ago, daemon logs were visible in the web UI. They were removed because access to logs generally does not conform to policy rules, and may leak the existence (and sometimes contents) of hidden objects, occasionally leak credentials in certain error messages, etc.

These bits and pieces were missed.

Test Plan: Grepped for removed symbols.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13253

Differential Revision: https://secure.phabricator.com/D20199