scripting: No longer install samba_upgradeprovision

scripting: No longer install samba_upgradeprovision

This tool is an important part of the toolkit a Samba Team member can
use to assist a user with the upgrade of a very old Samba 4.0 AD DC
installation.

However, like all powerful tools, it has sharp edges, and these need
to have more protection added before we recommend the tool be used.

The WHATSNEW already indicated that this tool should not be used but a
large number of users have run it, and due to lack of testing in the
past, some have run into bugs.

While this tool can be run in debug modes, by default it simply fixes
the database following a series of internal rule.  This does a good
job much of the time, but does not request permission in the way that
dbcheck does, and will create extra objects for things like the DNS
partitions.

By removing this from the installed binaries, we provide another
signal that it should not be used right now, until these matters are
fixed and some clear documentation on how to safely use the tool can
be written.

Andrew Bartlett

Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Tue Mar 12 02:51:23 CET 2013 on sn-devel-104
(cherry picked from commit 389197e7c31e8d6616e6503181c088940ddb5986)

Fix bug #9728 - DO NOT install samba_upgradeprovision in 4.0.x.