When Harry Potter went to the forest without his wand and voldemord performed the avada kedavra did Harry Potter died what happend?

Voldermort didn't kill Harry.

Harry went to give himself in because of how many inocent people died trying to save him in the battle of Hogwarts.

Voldermort performed a spell which he thought killed Harry. But Harry had to pretend he was dead in order for Voldermort to not realise he wasn't dead and perform another death-defying spell.