$ sudo apt-get remove krb5-k5tls 

Uninstall krb5-k5tls including dependent package

If you would like to remove krb5-k5tls and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove krb5-k5tls 

Use Purging krb5-k5tls

If you use with purge options to krb5-k5tls package all the configuration and dependent packages will be removed.

$ sudo apt-get purge krb5-k5tls 

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 krb5-k5tls 

See Also,