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