This reverts r1288 due to breaking compilation on bots:
http://build.chromium.org/p/client.libyuv/builders/Mac64%20Debug/builds/365
http://build.chromium.org/p/client.libyuv/builders/Linux64%20Debug/builds/667

TBR=fbarchard@google.com
TESTED=Reverted locally and all built fine again.

Review URL: https://webrtc-codereview.appspot.com/40879004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1289 16f28f9a-4ce2-e073-06de-1de4eb20be90