button delete

The answer was posted here:

http://answers.unity3d.com/questions/807557/how-to-access-sourceimage-component-of-a-button-in.html

  using UnityEngine;
  using UnityEngine.UI;
  
  [RequireComponent(typeof(Button))]
  public class example : MonoBehaviour
  {
      public Sprite newsprite;
      public bool condition;
  
      private Button button;
  
      void Start ()
      {
          button = GetComponent<Button>();
      }
  
      void Update ()
      {
  
          if (condition)
          {
              // If you want to change the sprite for only a short time,
              // and use a default whenever your condition is false
              button.image.overrideSprite = newsprite;
  
              // But if you really want the source image,
              // use the following line instead
              // button.image.sprite = newsprite;
          }
          else
          {
              // Setting the overrideSprite back to null will cause
              // the image to display the original value of image.sprite again
              button.image.overrideSprite = null;
          }
      }
  }

Do you mean the "Image" component of a button? Because you can simply say Destroy(GetComponent<Image>()) (just make sure that at the beginning of your script you have using UnityEngine.UI;

However depending on your situation, it might be a better idea to just deactivate the image instead ( GetComponent<Image>().enabled = false);