This was the first internal shader written for prototyping UtilsVk.  It
ended up never having a user.

Bug: angleproject:2022
Change-Id: I846dcc216c4c018f5bda16ad67463f698b8e1c56
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2280944Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>