Revert of use reversePathTo in place of addPathReverse (patchset #1 id:1 of https...

Revert of use reversePathTo in place of addPathReverse (patchset #1 id:1 of https://codereview.chromium.org/2481463002/ )

Reason for revert:
breqking some bots

Original issue's description:
> use reversePathTo in place of addPathReverse
>
> Path ops was using addPathReverse, instead of reversePathTo.
> The former adds a moveTo always, and the latter requires
> that the caller add the moveTo if needed.
>
> Simplify the reversePathTo implementation.
>
> R=reed@google.com
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2481463002
>
> Committed: https://skia.googlesource.com/skia/+/d8db392be9dd1887df04b10b5670991d6b098c17

TBR=reed@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/2478763003