[Fontations-backend] Minor: Remove return statement

Just return the result of `unwrap_or_default()` without an explicit
return statement.

Change-Id: Idb9d8eaa105b694dd0a80e139604950bb7871c63
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/808856
Commit-Queue: Dominik Röttsches <drott@chromium.org>
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Dominik Röttsches <drott@chromium.org>
1 file changed