Revert "ART: introduce PALette abstraction layer"

This reverts commit 4b9d00aca9b025b545c9633b4605334c22fc4d2d.

Reason for revert: breaks renderscript mac and run_host_tests in master.

Change-Id: I6024894a384c65f3e7d81b9c5bba8ebe8ce1b420
32 files changed