remove file-based size/bench tracking

Kind of annoying.  Downgrade to printing on terminal.

Change-Id: Idbb7c8c214398f1ec6813d6db22913e3769d40bb
Reviewed-on: https://skia-review.googlesource.com/c/eskia/+/198526
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
5 files changed