remove approxbytes api from SkPicture

Bug: skia:
Change-Id: I292bc9ab52fe8df3ce97a2ad4b06085b0332b19d
Reviewed-on: https://skia-review.googlesource.com/89440
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
8 files changed