What is the simplest way to get photos from Iphone into Lightroom cloud AND delete them from iphone

Hello, I am trying to get photos off my wife's phone and into Lightroom Cloud.  I was able to open the Lightroom app on the iPhone and upload photos into Lightroom but then they still are found on the iPhone in the photos app.  Is there a way to move them, not just copy them?  Or do I have to go back an manually delete them from the iPhone after I've moved them to the Lightroom Cloud?

By @jasonb42111946

At this time, once imported into the LrM app on your phone, the images still remain in the Photos app and have to be manually deleted from there (after they have synced to the Lightroom cloud).

Translated with Bing.
I think you don't new iPhone photos to Lightroom, you just export a copy (like to other apps). Therefore, you must delete it after exporting, or at least I do so.