Revert of added stroking support to GrAALinearizingConvexPathRenderer (patchset ...

Revert of added stroking support to GrAALinearizingConvexPathRenderer (patchset #6 id:100001 of https://codereview.chromium.org/1180903006/)

Reason for revert:
speculative revert to try to fix DEPS roll (layouttests)

Original issue's description:
> added stroking support to GrAALinearizingConvexPathRenderer
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/2436f191e6602953b32a51cf50f2d7a4e2af90fd

TBR=bsalomon@google.com,robertphillips@google.com,ethannicholas@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1212833002