Revert of Bundle common arguments to GrGradientEffect creation (patchset #2 id:20001...

Revert of Bundle common arguments to GrGradientEffect creation (patchset #2 id:20001 of https://codereview.chromium.org/2332213007/ )

Reason for revert:
This seems to be causing the autoroll into Chromium to fail.

https://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/builds/69618/steps/compile/logs/stdio

Original issue's description:
> Bundle common arguments to GrGradientEffect creation
>
> I'm going to be adding more (to deal with color spaces), so trying to fix
> this before it gets out of control.
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2332213007
>
> Committed: https://skia.googlesource.com/skia/+/f605c16a030d791a37f589e6bddd7158ba5d62cd

TBR=bsalomon@google.com,robertphillips@google.com,brianosman@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review-Url: https://codereview.chromium.org/2343703003