Login in to the admin Panel.
Click on Slider. You should see a screen similar to the following:
Simply move your mouse over one of the links – i.e. “Keller1” and choose “Trash”
The image is now removed from the Image Slider. If you want to recover the image, click on the trash link at the top of the slider page (see below):
To recover, hover over the slide you want to restore and click “Restore”
← How do I remove an image from the slider?