Macros - fix audio disabling not actually disabling audio

Summary: Fixes T5653.

Test Plan: made a macro with sound and it played. changed it to not play and it did not play. changed it back and it played once more.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5653

Differential Revision: https://secure.phabricator.com/D10085