[MERGE] Remove obsolete special casing of rich roots in upgrade

[Jelmer Vernooij]

This removes special casing of rich roots for the default format in
upgrade. This is no longer necessary since the default format is rich
root these days.

Cheers,

Jelmer

-- 
Jelmer Vernooij <jelmer at samba.org> - http://samba.org/~jelmer/
Jabber: jelmer at jabber.fsfe.org
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