[skottie] Suppress placeholder range selector warnings

For text animators without associated range selectors, BodyMovin still
exports a selector entry with invalid (0) domain/shape props.

Suppress warnings for these, as they are expected with BM.

TBR=
Change-Id: I7ec3737ebc2a33f4ba6955975c50ea7bf116b003
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/231481
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
1 file changed