Every time I update, I see the following:
$ apt list --upgradable
cloud-init/zesty 0.7.9-90-g61eb03fe-0ubuntu1 all [upgradable from: 0.7.9-0ubuntu1~16.10.1]
and when upgrading
The following pac...
Last I recall, DigitalOcean uses it for the imaging and snapshot setups. If you're not going to use the snapshot / backup service, then it's safe to remove.
Removing the package shouldn't ...