[skottie] Remove legacy whitespace guard

No longer used.

Change-Id: Id68a8d4340bc685c938ab22619f2b4067b3f9206
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/528163
Commit-Queue: Florin Malita <fmalita@chromium.org>
Auto-Submit: Florin Malita <fmalita@chromium.org>
Reviewed-by: Jorge Betancourt <jmbetancourt@google.com>
Commit-Queue: Jorge Betancourt <jmbetancourt@google.com>
1 file changed