How to remove old device from Safari iCloud Tabs? I returned a MacBook to Apple Store, however apparently I forgot to sign out of iCloud and the latest tabs I was browsing still appear in Safari iCloud Tabs of my new MacBook and existing iPad.

I removed the device from icloud.com -> Find My iPhone but it didn't work. Tabs list from my old computer is still there and I am trying to remove it from my devices list. I appreciate any ideas.
From Apple's iCloud Tabs support article (emphasis added):


  If you can't access the device that shared the tab, the tab will automatically be cleared from the list after 14 days if the tab isn't updated.


So, any leftover tabs should be gone after two weeks.