Issue #3584184: Remove denormalization.
Issue #3584184:
- Remove code related to denormalization so developers can target the data themselves in process plugins.
- Remove event subscriber code and Row Passthrough plugin since we technically don't need them.
- Update migration configs so we aren't forcing providers on developers.
- Improving decode method so we can more reliably grab the json in AI results
- Some general cleanup.
Closes #3584184