Bullet Destroying script

Hello. trying to get my bullet to get destroyed on collision but i can't make it work. please Help.

var maxDistance = 50;

var LookAtTarget:Transform;

var bullitPrefab:GameObject;

var damp = 6.0;

var savedTime = 0;

function Update () {

  if(LookAtTarget && distance < maxDistance)
  {
  var rotate = Quaternion.LookRotation(LookAtTarget.position - transform.position);
 
  transform.rotation = Quaternion.Slerp(transform.rotation,rotate,Time.deltaTime * damp);
 
  var seconds : int = Time.time;
 
  var evenodd = (seconds / 2);
 
  if (evenodd) 
  {
  Shoot(seconds);
  }
  }

}
function Shoot(seconds) {

  if(seconds!=savedTime)
  {
     var bullit = Instantiate(bullitPrefab,transform.Find("spawnPoint").transform.position,
                  Quaternion.identity);
 
     bullit.rigidbody.AddForce(transform.forward * speed);
 
     savedTime = (seconds);    
      if (collision : Collision){
      Destroy(bullitPrefab.)
  } 

} function OnCollisionEnter(collision : Collision) {

 // Remove the Bullet from the world
 Destroy(bullitPrefab.gameObject);
 

}