Revert of SkPDF:  Implement /ActualText to make text extraction correct. (patchset #11 id:220001 of https://codereview.chromium.org/2322403002/ )

Reason for revert:
MSAN, ASAN errors

Original issue's description:
> SkPDF:  Implement /ActualText to make text extraction correct.
>
> For old API: no change.
>
> For new API: LTR text is perfectly extracted, RTL needs better testing.
>
> BUG=skia:5434
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2322403002
>
> Committed: https://skia.googlesource.com/skia/+/dbd16345a5b2b824f2696af791bb0f01304cf549

TBR=tomhudson@google.com,bungeman@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:5434

Review-Url: https://codereview.chromium.org/2338213008
3 files changed