vp8 denoiser fix: free memory of denoiser->denoiser_state.

Change has been committed upstream:
https://gerrit.chromium.org/gerrit/#/c/70675/

BUG=https://code.google.com/p/webrtc/issues/detail?id=3524
R=johannkoenig@google.com, ronghuawu@chromium.org
TBR=tomfinegan@chromium.org

Review URL: https://codereview.chromium.org/360053005

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/libvpx@280676 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
1 file changed