Revert of Make a single GrSingleOwner in GrContext (patchset #3 id:40001 of https://codereview.chromium.org/1563703004/ )

Reason for revert:
breaking asan

Original issue's description:
> Make a single GrSingleOwner in GrContext
>
> TBR=bsalomon@google.com
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1563703004
>
> Committed: https://skia.googlesource.com/skia/+/f9bc796e0dbd31674c22b34761913ee6e8fdd66a

TBR=robertphillips@google.com,joshualitt@chromium.org
# 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/1565303003
7 files changed