How to remove redundant devices from my account

Hi Guys

I disposed of most of my NetAtmo equipment, it broke, wore out, became redundant etc., I have recycled it.

The redundant equipment was mostly weather stuff, indoor, outdoor sensors, I have replaced them all with kit from other vendors.

All I am still using is the Thermostat, Relay and Valve for my heating system.

How can I remove the old equipment from my account, it is cluttering up the App interface?