Revert "GrTessellator: fix for ping-pong split fuzzer hang."

This reverts commit bfb2a05af105f452a0f369e39dae05f9224dfa19.

Reason for revert: Seems to cause failures in chromeos and chromecast test bots. eg:
https://chromium-swarm.appspot.com/task?id=3dc5be8269e3b410&refresh=10
https://chromium-swarm.appspot.com/task?id=3dc5d62dfdc99010&refresh=10

Original change's description:
> GrTessellator: fix for ping-pong split fuzzer hang.
> 
> Change 3b5a3fa8b1c11d4bd4499b040311f4c3553ebf8c introduced support for
> splitting on out-of-range intersections. However, this is only necessary
> for correctness when the edge is nearly-flat (the top and bottom
> points only differ by 1/2 machine epsilon in the primary sort criterion).
> In other cases, it can cause repeated splitting and re-merging of edges,
> as the intersection code (being approximate and not exact) may produce a
> ping-pong set of intersections.
> 
> The fix is to support out-of-range intersections only if they differ by
> 1/2 machine epsilon. This also generalizes the
> out_of_range_and_collinear() check, so it was removed.
> 
> Bug: 838978
> Change-Id: I134f7eff3f15707e0d68de11c55f7fadce4ff8e7
> Reviewed-on: https://skia-review.googlesource.com/130448
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Commit-Queue: Stephen White <senorblanco@chromium.org>

TBR=robertphillips@google.com,senorblanco@chromium.org

Change-Id: I3fa62423d3875665397adcecb94b467b9b6611cc
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 838978
Reviewed-on: https://skia-review.googlesource.com/130522
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Ravi Mistry <rmistry@google.com>
2 files changed