Remove Container Policy from devices

As Sophos have now deprecated Sophos Container, Sophos Email apps etc as of Dec 2023. How do we remove the unnecessary Container Policies from our devices? I've tried to un-assigning the policy like...
Unable to connect to Wi-Fi for Sophos Control sync due to network restrictions

Hi, I am trying to connect to a Wi-Fi network to sync my device with Sophos Control, but network access is restricted. If I change the policy, it won't update because there's no connection, creating...