Revert of fix for conic fuzz (patchset #3 id:40001 of https://codereview.chromium.org/2350263003/ )

Reason for revert:
See if this fixes the layout tests.

Original issue's description:
> fix for conic fuzz
>
> A fuzzer generates a conic that hangs when drawn.
> The quads that approximate the conics move up and down
> in y, confusing the renderer.
>
> This fix ensures that the split conic maintains the
> same y direction as the original conic.
>
> R=reed@google.com
> BUG=647922
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2350263003
>
> Committed: https://skia.googlesource.com/skia/+/ac78863acdef4b428aaf66985b80c76d1be0fdea

TBR=reed@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=647922

Review-Url: https://codereview.chromium.org/2361473004