Use Find Devices on iCloud.com to temporarily remove a device from the Devices list or remove Activation Lock on a device you gave away or sold.
How to Turn Off 'Find My Device
How to find a lost or stolen iPhone with Find My and other methods
How to Find an iPhone That's Offline or Dead: 4 Easy Methods
How to Turn Off Find My iPhone Remotely from iCloud
How to erase an iPhone or iPad that was lost or stolen
Use Find Devices on iCloud.com - Apple Support
Turning off, find my - Apple Community
HOw to remove a device from icloud - Apple Community
How to Sign Out of iCloud on iPhone or iPad: Simple Guide
How to Use Find My on iCloud to Locate Your Apple Devices - The Mac Observer
How to Remove a Device from Find My iPhone on iCloud.com? - Laptop/Mobile Service Center
How to Turn Off 'Find My Device
Preparing for Leased L
How to Remove Someone Else's Apple ID From Your iPhone
Turn Off Find My iPhone with a Computer (or phone) from iCloud.com