You can uninstall or removes an installed astro-development package itself from Debian 9 (Stretch) through the terminal,
$ sudo apt-get remove astro-development
If you would like to remove astro-development and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove astro-development
If you use with purge options to astro-development package all the configuration and dependent packages will be removed.
$ sudo apt-get purge astro-development
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 astro-development