How to uninstall qca-tls from Ubuntu
To uninstall just qca-tls package itself from Ubuntu execute on terminal:
sudo apt-get remove qca-tls
Uninstall qca-tls and it's dependent packages
To uninstall the qca-tls package and any other dependant package which are no longer needed on Ubuntu.
sudo apt-get autoremove qca-tls
If you also want to delete configuration and/or data files of qca-tls from Ubuntu then this will work:
sudo apt-get purge qca-tls
To delete configuration and/or data files of qca-tls and it's dependencies from Ubuntu then execute:
sudo apt-get autoremove --purge qca-tls
qca-tls package information
TLS plugin for the Qt Cryptographic Architecture (QCA)
This is a plugin to provide SSL/TLS capability to programs that utilize the Qt Cryptographic Architecture (QCA). QCA is a library providing an easy API for several cryptographic algorithmns to Qt programs. At the moment only the qca-tls plugin is packaged for debian, as it's used by the package 'psi'. The generic library and several other plugins will be packaged when upstream releases them.
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.