Revert of When not writing to file in DM, spew verbose output to stderr (patchset...

Revert of When not writing to file in DM, spew verbose output to stderr (patchset #1 id:1 of https://codereview.chromium.org/1788743002/ )

Reason for revert:
Looks like not all the bots are using --writePath (think, Valgrind, *SAN) so this causes those bots to spew like crazy.

Looks like we need to find a more explicit way to make this mode work.

Original issue's description:
> When not writing to file in DM, spew verbose output to stderr
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1788743002
>
> Committed: https://skia.googlesource.com/skia/+/40dec542cc12b354762bca2c0d68bc419f0cbebd

TBR=egdaniel@google.com
# 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/1783603006