As gruesome as that controversial scene is, it's always been bloodless. I'm pretty sure it's unchanged as I saw an fairly old print a few years back.

Spielberg did tone the lava dip scene in post production, because he found it too gruesome watching the footage ILM created with a realistic puppet of the sacraficial victim writhing in agony. ILM added more flames in the foreground to obscure it.

There's a Last Crusade screening coming up near me. I may have to go and find out if that line of dialog is there.