You can uninstall or removes an installed libgorm-dev package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,
$ sudo apt-get remove libgorm-dev
If you would like to remove libgorm-dev and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove libgorm-dev
If you use with purge options to libgorm-dev package all the configuration and dependent packages will be removed.
$ sudo apt-get purge libgorm-dev
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 libgorm-dev