Revert "ccpr: Handle winding and even-odd in the same shader"

This reverts commit 5dd3fccb3c7d9fce2663803a1284734237d8546d.

Reason for revert: fma() not supported pre-3.1

Original change's description:
> ccpr: Handle winding and even-odd in the same shader
> 
> We are already waiting for an entire texture lookup anyway. A couple
> extra flops should still complete before the texture fetch. This also
> gives us better batching.
> 
> Bug: skia:
> Change-Id: I83a7a8ba6c05cd1ad6b1756a987429233e69ed6c
> Reviewed-on: https://skia-review.googlesource.com/129422
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,csmartdalton@google.com

Change-Id: Iaa6b72686fdf89b58a0ea8418296985c2a3dc27e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/129900
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
9 files changed