fix errors

Assets/Scripts/GameController.cs

@@ -17,8 +17,6 @@ public class GameController :MonoBehaviour
 	public static bool RaceIsStarted { get { return true; } }
 	public static bool RaceIsEnded { get { return false; } }
 
-	public TextMeshPro speedometer;
-
 	public List<GameObject> cars;
 	int CurrentCarIndex = 0;
 
@@ -29,14 +27,7 @@ public class GameController :MonoBehaviour
 	{
 		finished=gameObject.GetComponent<GameManager>().playersFinished;
 
-		if (speedometer == null)
-        {
-            speedometer = new TextMeshPro();
-        }
-        if (carRB == null)
-        {
-            carRB = GetComponent<Rigidbody>();
-        }
+		
 	}
 
 	public void Update () 
@@ -47,9 +38,7 @@ public class GameController :MonoBehaviour
 			NextCar ();
 		}
 
-		carVel = (math.abs(carRB.velocity.x) + math.abs(carRB.velocity.y) + math.abs(carRB.velocity.z))*5;
-        //print(carVel);
-        speedometer.SetText(carVel.ToString());
+		
 
 	}