moving home and selling my Tado devices

Will be moving to an all electric retirement flat and the new owner of my house does not want the tado installation so will be looking to remove and sell.

I have the smart hall thermostat , 5 radiator thermostats and an Internet bridge.

Am I right in thinking that if I go into settings and then click on each device and click on the 3 blue dots I can then remove each item and that will allow me to sell on.

One last question, with the internet bridge I can see no where listed to remove the device in the settings .

Any help appreciated