$ sudo apt-get remove libtango8 

Uninstall libtango8 including dependent package

If you would like to remove libtango8 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libtango8 

Use Purging libtango8

If you use with purge options to libtango8 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libtango8 

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 libtango8 

See Also,