Revert "Tiling support for GrGradientEffect kTwo_ColorType/kThree_ColorType"

This reverts commit b86aaeb7b0841c2c23f7b36b0bb0520ce2fb3256.

Reason for revert: Nexus7/Tegra3 crashing on lcdblendmodes

Original change's description:
> Tiling support for GrGradientEffect kTwo_ColorType/kThree_ColorType
> 
> Currently only the hard-stop specializations support tiling.
> 
> Consolidate the tiling code and expand to kTwo_ColorType,
> kThree_ColorType also.
> 
> Change-Id: I0c04997f563a7150a486ccc03f8121099a651c0b
> Reviewed-on: https://skia-review.googlesource.com/30780
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Florin Malita <fmalita@chromium.org>

TBR=bsalomon@google.com,robertphillips@google.com,brianosman@google.com,fmalita@chromium.org

Change-Id: I89c89c630f206c3a330e4b31aa3834dfbc5cd9e0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/31244
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
1 file changed