Revert "omap4-common: Include specialized copy of libskia for playback of Saved Webpages."

Not used in KitKat.
This reverts commit 20affe1cafed0a2a4a159c531135144687213bad.

Change-Id: Ic974008d214722a624dd35f6cb0d48c19ff28ffb
Merge branch 'cm-11.0' into martincz