Remove "latest" tag from "docker-dev"
Remove "latest" tag from "docker-dev"

	# "latest" intentionally missing, since "docker-dev:latest" implies (IMO) the "latest development image", which these builds never will be
	# if that is what you are after, see "dockercore/docker" (https://registry.hub.docker.com/u/dockercore/docker/)

This is just to further solidify the idea that "docker-dev" is _not_ for the latest and greatest builds of `github.com/docker/docker`.

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