m7-common: remove camera overlay

* Camera app has been completely moved into Gallery2

Change-Id: I9bb9f7d767e498b3aaebde715497973563899c8c
m7-common: remove deprecated recovery version define

Change-Id: I6a443657daab939a2c25ad28c3daf1ceb2b2c757
m7-common: properly route speaker for regular VOIP playback

Change-Id: I023dbe2ee88afd3e137bc8491e73708d7f1ad7d1