This question already has an answer here:
It occurred to me, while watching the movies, that Harry could have died doing any number of things, and Death Eaters had plenty of chances to kill him. But Voldemort had specific orders, Harry was his to kill.
The prophecy, any prophecy, by definition, is just a telling of things to come. It isn't some law regarding what must happen. Shouldn't Voldemort, knowing this, just had someone off Harry? Was this just a long story of someone's pride being their downfall?
I'm not asking why Voldemort had to kill Harry as Dumbledore said (Dumbledore knew there was a piece of Voldemort's soul to kill). That is answered here.
What I'm asking, is:
Why didn't Voldemort just put a nice bounty on him and be done with it?