Revert of SkStringPrintf and SkString::printf now are no longer limted by a static...

Revert of SkStringPrintf and SkString::printf now are no longer limted by a static buffer (patchset #5 id:80001 of https://codereview.chromium.org/1403803002/ )

Reason for revert:
breaking something

Original issue's description:
> SkStringPrintf and SkString::printf now are no longer limted by a static buffer
>
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1403803002
>
> Committed: https://skia.googlesource.com/skia/+/606cadd5aac62299ef2e277709b3684cae2bf96c

TBR=tomhudson@google.com,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/1908423002