removes some useless packages on ubuntu 16.04. uselsess packages mean gui-related packages. if you do not need to use gui-related packages, then remove them
removev packages; vlc, sonic-pi, firefox, scratch, welcome page, thunderbird, pidgin, libreoffice,
git clone https://github.com/semihyildirim/removeGuiRelatedPackages && \
cd removeGuiRelatedPackages && \
sudo chmod +x removeGuiRelated.sh && \
./removeGuiRelated.sh;