How add this destory bullet to my autofire script?

My original shooting script was single fire only but it had a script where it deletes bullets after x amount of seconds. I have it set to 2. Here is the script that has the delete bullet thing.
var projectile : Rigidbody ;
var speed = 20;

function Update () {

if(Input.GetButton("Fire1"))
{
clone = Instantiate(projectile, transform.position, transform.rotation);
clone.velocity = transform.TransformDirection(Vector3 (0, 0, speed));
clone.AddForce(clone.transform.forward * 2150);
Destroy (clone.gameObject, 2);

}}

Line 11 is the line I would like to add to this script

#pragma strict
 
var bullet : GameObject;

private var shooting = false;
 
function Start() {
   InvokeRepeating("Shoot", 0.0, 1.0 / bulletsPerSecond);
}
 
function Shoot() {
  if (!shooting) return;
  var go = Instantiate(bullet, transform.position, transform.rotation);
  go.rigidbody.AddRelativeForce(Vector3.forward * 1750.0);
}
 
function Update(){
    shooting = false;
    if(Input.GetAxis("Fire1")){
        shooting = true;
    }
}
private var bulletsPerSecond = 6.0;

When I try to do this i get a compiler error saying clones is bad or something. Where do I add line 11 or whatever line to make this work?

I think what you are asking for is to insert between lines 14 and 15:

Destroy(go, 2.0);