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