Revert "Update makefiles to use system skia."

This CL was causing some build failures in klp-modular-dev and
klp-volantis-dev.  Reverting while we investigate.

This reverts commit b8b8538610a0128fa7bacfbec93f5546a2977fae.

Change-Id: I89173e4054d7d8402411259823bc6516d6da38b5
68 files changed