Remove View Log action from Herald List

Summary: Fixes T8979. I beleive this explicit page was merged into view, at least I can't find any place to link it now.

Test Plan: View a Herald list, no icon.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T8979

Differential Revision: https://secure.phabricator.com/D13743