Revert "Allow distance field path renderer to store bitmaps at low resolutions"

This reverts commit c0bc1bb8690e5ce489394112b0cf4fe4601c1f2c.

Reason for revert: broke build with SkTDynamicHash error

Original change's description:
> Allow distance field path renderer to store bitmaps at low resolutions
> 
> BUG=chromium:682918
> 
> Change-Id: I1a0608f7e6394ab05eebc4b78fb7087ca718f617
> Reviewed-on: https://skia-review.googlesource.com/8971
> Commit-Queue: Jim Van Verth <jvanverth@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> 

TBR=egdaniel@google.com,jvanverth@google.com,bsalomon@google.com,robertphillips@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:682918

Change-Id: I4a3c370a248915fe7c7e77dd0346d6ab6f0d10c6
Reviewed-on: https://skia-review.googlesource.com/9063
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>
4 files changed