How to uninstall connman-gnome from Ubuntu
To uninstall just connman-gnome package itself from Ubuntu execute on terminal:
sudo apt-get remove connman-gnome
Uninstall connman-gnome and it's dependent packages
To uninstall the connman-gnome package and any other dependant package which are no longer needed on Ubuntu.
sudo apt-get autoremove connman-gnome
If you also want to delete configuration and/or data files of connman-gnome from Ubuntu then this will work:
sudo apt-get purge connman-gnome
To delete configuration and/or data files of connman-gnome and it's dependencies from Ubuntu then execute:
sudo apt-get autoremove --purge connman-gnome
connman-gnome package information
Intel Connection Manager gnome applet
The Linux Connection Manager project provides a daemon for managing Internet connections within embedded devices running the Linux operating system. The Connection Manager is designed to be slim and to use as few resources as possible, so it can be easily integrated in other Moblin-based embedded systems. It is fully modular system that can be extended through plug-ins, to support all kinds of wired or wireless technologies. Also, configuration methods like DHCP and domain name resolving are implemented using plug-ins. The plug-in approach allows for easy adaption and modification for various use cases.
More information about apt-get remove
Advanced Package Tool, or APT, is a free software user interface that works with core libraries to handle the installation and removal of software on Debian, Ubuntu and other Linux distributions. APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of software packages, either from precompiled files or by compiling source code.
apt-get is the command-line tool for handling packages, and may be considered the user's "back-end" to other tools using the APT library.
apt-get remove is identical to install except that packages are removed instead of installed. Note that removing a package leaves its configuration files on the system. If a plus sign is appended to the package name (with no intervening space), the identified package will be installed instead of removed.