Quiet Hours: Allow disabling phone ringer (1/3)

Change-Id: I73746443d1797c0f73a13faea2c422f5759b64a5
Merge "Quiet Hours: Allow disabling phone ringer (1/3)" into cm-11.0
Revert "Quiet Hours: Allow disabling phone ringer (1/3)"

This reverts commit 3f8289e6a140cc8b0c4d05a40e833b1987db486b.
Merge remote-tracking branch 'cm/cm-11.0' into kk