Revert "vp9: Enable ml based partition for speed>=8 low res."

This reverts commit eed8d47769ddc78c277f8a45b12af4b65096b59a.

BUG=chromium:946409

Change-Id: Iaf9929de841445f63e93792d1fee06d9a1035ef4
(cherry picked from commit 152358da777d45613b386be3a116719b8b16bd6d)
1 file changed