Revert "On order confirmation page and email, display distributor details instead of misc fields. HACK - this should be in the engine, not in the main app. FIXME"

This reverts commit b7f7766893afc23bedefb642f56399205865fc61.
Restore change: render checkout distributor details from partial
Add FeatureToggle config to replace ENV['OFW_DEPLOYMENT']
Define feature toggles in FeatureToggle class rather than ENV['OFW_DEPLOYMENT']