Removing your device is simple and can be done in just a few steps.
First, login to your account and then navigate to the People page.
Next, click on the name of the user you are wanting to remove a device from.
Lastly, click on devices from the pop up screen and click on the "x" next to the device you are wanting to remove, then hit save changes and you are done!
Please contact support if you have any further questions.