How to make trigger removes script.

You don't have to SHOUT, be nice and nice things will happen. Check my answer here for enabling or disabling scripts : http://answers.unity3d.com/questions/375514/switch-scripts.html

Im not shouting :D but i want to destroy script not disable it,but destroy it :)

Well my reply is exactly the same as $$anonymous$$aster Berenger : I don't know what you want to remove, but you need to use the Destroy function, either on a component or a game object

What script are you talking about? On what object? There is no RemoveComponent command anywhere I looked. How is destroying a script going to be different from enabling it? From my reading this 'site, a good practice of game design is to not use Instantiate or Destroy unless absolutely completely necessary, rather use pooling techniques with enable and/or SetActiveRecursively.

Edit :

you were advised about not using CAPS on this question : http://answers.unity3d.com/questions/376840/action-activates-trigger.html

also every question you asked without an accepted answer is a request to write code for you.

I cannot believe I am doing this, sorry for taking this on after you Berenger (upvoted). Untested code, for learning purposes only, use at your own risk.

 var wallScript : TheNameOfTheScriptOnTheWallHere; // typecast variable to the name of the script

 function Start()
 {
     // Use GetComponent at Start wherever possible
     var wallObject : GameObject = GameObject.Find("Wall"); // find the wall object
     wallScript = wallObject.GetComponent( TheNameOfTheScriptOnTheWallHere ); // find the script component on the wall object
 }
 
 function OnTriggerEnter (other : Collider)
 {
     if (other.tag == "Player")
     {
         Destroy( wallScript ); // say bye-bye to the script
     }
 }

Unity Scripting Reference : http://docs.unity3d.com/Documentation/ScriptReference/Object.Destroy.html

Just a couple of links by searching (google is your friend, simply search the title to your question) :

http://answers.unity3d.com/questions/223276/object-destroys-on-collision-script.html

http://answers.unity3d.com/questions/32446/collision-script-to-destroy.html

Thanks man,you are the BEST,FOR REAL,you should use your skills to make something with unity...