Revert "Annotate SkPath::fCovexity benign race in the other constructor too."

Revert "Annotate SkPath::fCovexity benign race in the other constructor too."

This reverts commit f978f12af553f899cfed7078ab63d3a71c6fbcb1.

Reason for revert: slowing the TSAN bot down to the point of timeouts.

Original change's description:
> Annotate SkPath::fCovexity benign race in the other constructor too.
>
> I overlooked the copy constructor last time.
>
> BUG=skia:5776
>
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4730
>
> Change-Id: I30bc89e1472dd48badf57664cfae8899f44bca9e
> Reviewed-on: https://skia-review.googlesource.com/4730
> Reviewed-by: Mike Klein <mtklein@chromium.org>
> Commit-Queue: Mike Klein <mtklein@chromium.org>
>

TBR=mtklein@chromium.org,reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I6e34b1fc80fd98387d79521ce24f4545b990eb25
Reviewed-on: https://skia-review.googlesource.com/4739
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>