Cleanup killswitch for kDelegateTransforms

Change-Id: Ic7e30c1ab2bcf69e493c7f757f865d4bff010af0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5426739


Reviewed-by: Kyle Charbonneau <kylechar@chromium.org>
Commit-Queue: Peter McNeeley <petermcneeley@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1283302}