The unbundled form is just a way to show case a prototype for how an
unbundled version of RSC can work. It's not really intended for every
bundler combination to provide such a configuration.
There's no configuration of Turbopack that supports this mode atm and
possibly never will be since it's more of an integrated server/client
experience.
This removes the unbundled form and node register/loaders from the
turbopack build.
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