How to remove an AppleStore's loaned iPhone from my iCloud Safari Tabs?

I'm have a problem of a loaned iPhone still showing up in my iCloud Safari Tabs and would like to remove it.

I was issued a loaner while my iPhone was sent in for repairs, and upon returning it, I wasn't signed out of iCloud before the store clerk proceeded to erase all the settings and data on the phone.

Now, upon looking through my safari's iCloud tabs, I am stuck with the loaner phone's last tab sessions.

I've tried to remove the phone from my iCloud account, however it is not showing up. I've tried merging all iCloud data and that did not clear it out.

I can't imagine I'm the first to experience this and would hope Apple has a means in place to handle this, I just don't know where.

Any help is appreciated!