Revert of By default purge resources that haven't been used for 64 flushes (patchset #4 id:60001 of https://codereview.chromium.org/1316233003/ )

Reason for revert:
Breaking again

Original issue's description:
> By default purge resources that haven't been used for 64 flushes
>
> BUG=skia:4258
>
> Committed: https://skia.googlesource.com/skia/+/85047175508a24f43eef49359bed215a2a3bb104
>
> R=robertphillips@google.com
>
> Committed: https://skia.googlesource.com/skia/+/71d0c33068d41878cc3117f3761f49300f6b3d54
>
> Committed: https://skia.googlesource.com/skia/+/bd783cd5b62118277b75933c3cd7b9097129259a

TBR=robertphillips@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4258

Review URL: https://codereview.chromium.org/1322753004
1 file changed