Doug, I am not the iPhone expert like you so I have simple needs. How do I remove an empty page?
Well at first I thought this simple need was a real pain. I found solutions requiring me to move all the icons from the rightmost page to the leftmost pages just to get rid of a blank page.
Finally I found a better way. Sort of. It is better than moving everything.
Go to Settings > General > Reset > Reset Home Screen Layout
This will put all of the stock icons back in the order and location that they were when you took your new device out of the box for the first time. OTHER ICONS/APPS WILL BE REARRANGED TO AVAILABLE SPACE, BUT WILL NOT BE DELETED.
You would think they could have put an X on a blank page and press the Home button like when deleting an app, but no.
Of course you have to re-arrange all your apps but at least you don't need to move them all.