Remove the static changelog from production user builds

This log is a manually updated text file, doesn't reflect reality,
and is generating confusion with customers due to outdated and/or
irrelevant (for their device) information.

Change-Id: I0905e8f0a3eb6303323fbd420472f334a7dcef49
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0