Revert "Include specialized copy of libskia for playback of Saved Webpages."

This reverts commit 6eae0292a8aa7a2374f35ebb8a9de801c9421761.

Deprecated in kitkat.

Change-Id: I70fd8284465491f3eadcdc1b595b9de27d7f200d
Refactor device tree

It's quite a mess right now - this commit makes it a lot cleaner.

Included changes:
- Introduce the DEVICE_FOLDER variable to make paths more readable
- Reorganize makefiles
- Remove obsolete recovery.fstab file

Change-Id: I0fe2d9994afe44207b267e60e237c9c997aa6e72
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0