$ sudo apt-get remove fte-xwindow 

Uninstall fte-xwindow including dependent package

If you would like to remove fte-xwindow and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove fte-xwindow 

Use Purging fte-xwindow

If you use with purge options to fte-xwindow package all the configuration and dependent packages will be removed.

$ sudo apt-get purge fte-xwindow 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove fte-xwindow 

See Also,