Layout builder and products with no variations shouldn't generate sample values

It looks like this is related to the variation being passed to those classes with `in_preview` as `TRUE`. So maybe it's as simple as figuring out why that's being set upstream.

Looks like this was introduced with #3190799: ProductVariationContext is causing extra generate sample images to be generated → would be helpful to only have this fire in the context of a layout builder interface. Not sure the best way to handle that. I guess route match is an option, but sounds kinda ugly.

My comment in #2 above doesn't work. If you really want to kill this on your instance, remove the following from commerce_product.services.yml

   calls:
     - [ setSampleEntityGenerator, [ '@?layout_builder.sample_entity_generator' ] ]

Wouldn't you know... all the stuff we needed was there all along.

Thank you Andy!

Automatically closed - issue fixed for 2 weeks with no activity.