can anyone help me? please I need your help anyone, I will really appreciate if someone reply to my question, you are my key to my future

I have a script attached to a cube(the player) a characterController component is attached into it then, I used the "characterController to make it move" it has collision when interacting with other objects

but what I want to happen is to disable or "remove" its collision feature I don't want the cube(the player) to collide to any object "like a ghost that has no collision to anyone".

I also have in mind to make another alternative script to do this to make the character move without the use of a character controller to make it possible

but I know this is the best and fastest way for me to make the character move. my only problem is I don't know to remove its collision detection here is the script that I used please help me.

using UnityEngine;
using System.Collections;

public class player : MonoBehaviour
{
    public static CharacterController CharacterController;

    public Vector3 MoveVector;
    public float MoveSpeed = 5f;

    void Awake ()
    {   
       CharacterController = GetComponent("CharacterController") as CharacterController; 

    }

    void Update ()
    {

       var deadzone = 0.1f;

       MoveVector = Vector3.zero;

       if(Input.GetAxis("Vertical") < -deadzone || Input.GetAxis("Vertical") > deadzone)
         MoveVector += new Vector3(0, 0, Input.GetAxis("Vertical"));

       if(Input.GetAxis("Horizontal") < -deadzone || Input.GetAxis("Horizontal") > deadzone)
         MoveVector += new Vector3(Input.GetAxis("Horizontal"), 0, 0);       

       // Transform MoveVector to Worlds Space3
       MoveVector = transform.TransformDirection(MoveVector);

       // Normalize MoveVector  if Magnitude > 1
       if (MoveVector.magnitude > 1)
         MoveVector = Vector3.Normalize(MoveVector);

       // multiply MoveVector by MoveSpeed
       MoveVector *= MoveSpeed;

       // multiply MoveVector by deltatime
       MoveVector *= Time.deltaTime;

       // Move Character in World Space
       CharacterController.Move(MoveVector);


    }
}