Revert of Generate Signed Distance Field directly from vector path (patchset #23...

Revert of Generate Signed Distance Field directly from vector path (patchset #23 id:440001 of https://codereview.chromium.org/1643143002/ )

Reason for revert:
Caused test failures again but this time in Win8 and Win10 bots:
* https://chromium-swarm.appspot.com/task?id=33384540bf6f3710&refresh=10
* https://chromium-swarm.appspot.com/task?id=3338a3ea9f6fe510&refresh=10

Original issue's description:
> Generate Signed Distance Field directly from vector path
>
> Add SkGenerateDistanceFieldFromPath API to generate signed distance field directly from SkPath.
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1643143002
>
> Committed: https://skia.googlesource.com/skia/+/4de97a64e8829323a7070b623411d9f9ddb0cd0f
> Committed: https://skia.googlesource.com/skia/+/e8f0a7b986f1e5583c9bc162efcdd92fd6430549
> Committed: https://skia.googlesource.com/skia/+/67c7c81a82b6351e9fbbf235084d7120162d9268
> Review-Url: https://codereview.chromium.org/1643143002
> Committed: https://skia.googlesource.com/skia/+/64b70b096ac20833d9737758a4bd5f2a51078bc4
> Review-Url: https://codereview.chromium.org/1643143002
> Committed: https://skia.googlesource.com/skia/+/6d2f73c364d0d823f14d1ddebc88e0bcbc8f0634

TBR=bsalomon@google.com,jvanverth@google.com,mtklein@google.com,wasim.abbas@arm.com,caryclark@google.com,reed@google.com,egdaniel@google.com,joel.liang@arm.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review-Url: https://codereview.chromium.org/2597473003