* Marks the RemoteTeamId field of RemoteClusters as deprecated
The `RemoteTeamId` was used both in the `RemoteCluster` model and as
part of remote invites. It existed so two different remotes could have
multiple secure connections between them, and have each of those
connections scoped to a team, sharing through each only the channels
that belong to their corresponding team.
The way that we're thinking on the feature currently only contemplates
one secure connection between two servers, and shares all the
channels through that secure connection, so this field is no longer
needed.
As we don't have a system in place for the user to choose in which
team a channel should be created from an invite, this change adds a
mechanism that checks the invite for a teamId, and if it's not
present, fetches a team from the database to create the channel
into. This makes the change backwards compatible for secure
connections that already have an established behavior and allows us to
move forward with the implementation of an alternative.
* Mark invite teamId field as deprecated
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Co-authored-by: Mattermost Build <build@mattermost.com>
