alarms: clean up duplicated sounds

another mess...

Alarm_Classic == Oxygen == Cesium
Promethium == Platinum
Argon == Fermium
Nobelium == Neon
Helium == Hassium
Plutonium == Krypton
Neptunium == Carbon

Change-Id: I29330a50a2538a5e3cf3af99d4f7bf1b17de7aca
Base: more fix Active Display (again)

maybe fix
http://jira.omnirom.org/browse/OMNI-313
http://jira.omnirom.org/browse/OMNI-421
http://jira.omnirom.org/browse/OMNI-401

Change-Id: Id947e18a9299200f1ccd41aa70e56534fdbb4b57

Patchset: 3
https://gerrit.omnirom.org/#/c/4915/