manifests: move fedora-coreos-pool to fedora-coreos.yaml

[jlebon]

This is common to all streams, so we can move it here. I had initially
kept it in manifest.yaml because of:

#355 (comment)

[jlebon]

So after this, we should be able to drop repos from all the manifests for production streams.

[dustymabe]

So after this, we should be able to drop repos from all the manifests for production streams.

Is there a reason the production streams have repos in there now and not lockfile-repos:?

[dustymabe]

LGTM

[jlebon]

So after this, we should be able to drop repos from all the manifests for production streams.

Is there a reason the production streams have repos in there now and not lockfile-repos:?

They just haven't been updated at all since adding support for lockfile-repos in rpm-ostree because it initially broke if only lockfile-repos was defined, and no repos.

[jlebon]

Let's update the production branches after the current releases are clear.

[jlebon]

Let's update the production branches after the current releases are clear.

OK right, let's do this at promotion time instead so we don't update non-manifest.yaml files out of cycle. Added a note in coreos/fedora-coreos-streams#339 and coreos/fedora-coreos-streams#338.