remove skia legacy define

Skia change has landed.
Looks like a handful of tests have minor changes.

R=fmalita@chromium.org

Bug: 843966
Change-Id: I5809a7a317e33a20c738a1b3ce4156a886b4d174
Reviewed-on: https://chromium-review.googlesource.com/c/1363213
Commit-Queue: Cary Clark <caryclark@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614500}
9 files changed