$ sudo apt-get remove mythes-cs 

Uninstall mythes-cs including dependent package

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

$ sudo apt-get remove --auto-remove mythes-cs 

Use Purging mythes-cs

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

$ sudo apt-get purge mythes-cs 

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 mythes-cs 

See Also,