Remove returns at end of stage splices.

Returns?  Where we're going, we don't need returns.

I have discovered a truly marvelous alternative, a description of which
this code review is too narrow to contain.

Change-Id: I13fb36eb75771bc691d8187dddd876efcebc57d6
Reviewed-on: https://skia-review.googlesource.com/8480
Reviewed-by: Herb Derby <herb@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
3 files changed