To uninstall ruby-clamp just follow these instructions.
sudo apt-get remove ruby-clamp
This will remove just the ruby-clamp package itself.
sudo apt-get remove --auto-remove ruby-clamp
This will remove the ruby-clamp package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for ruby-clamp then this will work.
sudo apt-get purge ruby-clamp
Or similarly, like this ruby-clamp
sudo apt-get purge --auto-remove ruby-clamp
|Maintainer||Debian Ruby Extras Maintainers <email@example.com>|
|Description||minimal framework for Ruby command-line utilities|