Revert "Always use raster pipeline for radial gradients"
Revert "Always use raster pipeline for radial gradients"

This reverts commit 5a5207ae677f92f2055be1211237cbc913978e71.

Reason for revert: suspect this is the reason for Google3 roll failure.

First color mismatch. Expected ff0006f9, got ff0004fb
Expected output mismatch apps/cereal/skia_expected/radialGradient.png (3392 pixels)


Original change's description:
> Always use raster pipeline for radial gradients
> 
> Change-Id: Id4c9ed45c28becf0e25ed9ff1b3380c7ca65aa4b
> Reviewed-on: https://skia-review.googlesource.com/25363
> Reviewed-by: Mike Klein <mtklein@chromium.org>
> Commit-Queue: Florin Malita <fmalita@chromium.org>

TBR=mtklein@chromium.org,14574f09dfa9b4e14759b88c3426a495a0e627b0@google.com,fmalita@chromium.org,reed@google.com

Change-Id: I382a22f354d3c0a1465bd9c1555f226b0f1abb58
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/25441
Reviewed-by: Mike Klein <14574f09dfa9b4e14759b88c3426a495a0e627b0@google.com>
Commit-Queue: Mike Klein <14574f09dfa9b4e14759b88c3426a495a0e627b0@google.com>

HalCanary/skia-hc,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,rubenvb/skia,HalCanary/skia-hc,rubenvb/skia,rubenvb/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,rubenvb/skia,rubenvb/skia,HalCanary/skia-hc,Hikari-no-Tenshi/android_external_skia,google/skia,rubenvb/skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,google/skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,google/skia,HalCanary/skia-hc,aosp-mirror/platform_external_skia,google/skia,Hikari-no-Tenshi/android_external_skia,rubenvb/skia,rubenvb/skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,rubenvb/skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,HalCanary/skia-hc,Hikari-no-Tenshi/android_external_skia,rubenvb/skia,google/skia,HalCanary/skia-hc,HalCanary/skia-hc