Revert of Turn on preprocessing by default (https://codereview.chromium.org/299033002/)

Reason for revert:
Don't want this enabled by default right now

Original issue's description:
> Turn on preprocessing by default
>
> The idea is to commit this late at night and then revert it after all the perf bots are running. It should only effect the GPU configs.
>
> Committed: http://code.google.com/p/skia/source/detail?r=14860

R=bsalomon@google.com
TBR=bsalomon@google.com
NOTREECHECKS=true
NOTRY=true

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/299123002

git-svn-id: http://skia.googlecode.com/svn/trunk@14861 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed