No need to upgrade preferences.

Since we changed the package name in Carlsbad, there is no old versions of
preferences anymore for now. We can skip upgrade the preferences file from
previous versions in modules. Instead we do this in the activity although it's
an no-op for now.

Change-Id: Ibb153d4f8f80b6891fb4cb00d13cd8a386ee44a9
4 files changed