You can uninstall or removes an installed libydpdict2 package itself from Ubuntu 14.04 LTS (Trusty Tahr) through the terminal,
$ sudo apt-get remove libydpdict2
If you would like to remove libydpdict2 and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove libydpdict2
If you use with purge options to libydpdict2 package all the configuration and dependent packages will be removed.
$ sudo apt-get purge libydpdict2
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 libydpdict2