Revert "Announce new state of modes when toggled in Modes Dialog"

This reverts commit 008cfe42.

Reason for revert: DroidMonitor: Potential culprit for b/361111266 - verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.

Change-Id: I84ac879209d4d01c036d2750cf588ad497815610