Revert of harden pathops for pathological test

Revert of harden pathops for pathological test (patchset #19 id:410001 of https://codereview.chromium.org/633393002/)

Reason for revert:
Compile errors on bots

Original issue's description:
> These tests stress pathops by describing the union of circle-like paths that have tiny line segments embedded and double back to create near-coincident conditions.
> 
> The fixes include
> - detect when finding the active top loops between two possible answers
> - preflight chasing winding to ensure answer is consistent
> - binary search more often when quadratic intersection fails
> - add more failure paths when an intersect is missed
> 
> While this fixes the chrome bug, reenabling path ops in svg should be deferred until additional fixes are landed.
> 
> TBR=
> BUG=421132
> 
> Committed: https://skia.googlesource.com/skia/+/6f726addf3178b01949bb389ef83cf14a1d7b6b2

TBR=caryclark@google.com
NOTREECHECKS=true
NOTRY=true
BUG=421132
Committed: https://skia.googlesource.com/skia/+/27c46a08a9210e9306b8ea1b00349ec198153c38

[hcm, 2014-10-28 17:55:10]

Created Revert of harden pathops for pathological test

[commit-bot: I haz the power, 2014-10-28 17:55:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/686843002/1

[commit-bot: I haz the power, 2014-10-28 17:56:01]

Committed patchset #1 (id:1) as 27c46a08a9210e9306b8ea1b00349ec198153c38