clamp_1 is also a no-op with 8-bit lowp

Change-Id: Ifef97d8f28c88c4ee3f7701aac6e383940ed5275
Reviewed-on: https://skia-review.googlesource.com/31020
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
1 file changed