You can uninstall or removes an installed libdata-treedumper-renderer-dh package itself from Ubuntu 14.04 LTS (Trusty Tahr) through the terminal,
$ sudo apt-get remove libdata-treedumper-renderer-dh
If you would like to remove libdata-treedumper-renderer-dh and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove libdata-treedumper-renderer-dh
If you use with purge options to libdata-treedumper-renderer-dh package all the configuration and dependent packages will be removed.
$ sudo apt-get purge libdata-treedumper-renderer-dh
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 libdata-treedumper-renderer-dh