To uninstall network-manager-gnome just follow these instructions.
sudo apt-get remove network-manager-gnome
This will remove just the network-manager-gnome package itself.
sudo apt-get remove --auto-remove network-manager-gnome
This will remove the network-manager-gnome package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for network-manager-gnome then this will work.
sudo apt-get purge network-manager-gnome
Or similarly, like this network-manager-gnome
sudo apt-get purge --auto-remove network-manager-gnome
|Maintainer||Utopia Maintenance Team <[email protected]>|
|Description||network management framework (GNOME frontend) and connections, attempting to keep active network connectivity when available. It manages ethernet, WiFi, mobile broadband (WWAN), and PPPoE devices, and provides VPN integration with a variety of different VPN services.|