Revert of Start using vertex attributes for nine-patch blurred rrect draws (patchset #8 id:140001 of https://codereview.chromium.org/2245653002/ )

Reason for revert:
??

Original issue's description:
> Start using vertex attributes for nine-patch blurred rrect draws
>
> Calved off:
> https://codereview.chromium.org/2243133002/ (Pull handling of blurred circles out of GrRRectBlurEffect::Make)
> https://codereview.chromium.org/2249463002/ (Update blurred rrect mask filter creation method to also handle caching)
> https://codereview.chromium.org/2248533002/ (Update ComputeBlurredRRectParams to compute all the parameters needed for occluded blurred rrect ninepatch draws)
>
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2245653002
>
> Committed: https://skia.googlesource.com/skia/+/087905a730241939da320092543c19dc06d5a7b4

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

Review-Url: https://codereview.chromium.org/2250543004
1 file changed