Revert 4876 "Support for CELT in NetEq4."

> Support for CELT in NetEq4.
> 
> BUG=1359
> R=henrik.lundin@webrtc.org
> 
> Review URL: https://webrtc-codereview.appspot.com/2291004

TBR=turaj@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2320007

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4879 4adac7df-926f-26a2-2b94-8c16560cd09d
4 files changed