How do I delete an image within a product design?

[glitterandchic]

Update:  Found it.  Right click on the layer.  I knew I'd find it if I just asked for help.  😂

On a product design, the different images or layers had an red x to remove that image, now it's gone.  All that is left is to remove the background.  What if I need to remove a specific element in a design?  I can't find it anywhere.  

[Windy]

In case someone else is looking for this info, I can report that highlighting the item and using the delete key on the attached keyboard works when I am working on my iPad.