$ sudo apt-get remove doc-rfc 

Uninstall doc-rfc including dependent package

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

$ sudo apt-get remove --auto-remove doc-rfc 

Use Purging doc-rfc

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

$ sudo apt-get purge doc-rfc 

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 doc-rfc 

See Also,