r18436: converted ldb to use talloc_move() instead of talloc_steal() when

r18436: converted ldb to use talloc_move() instead of talloc_steal() when
appropriate.

Note that I also removed the error checks that were being done on the
result of talloc_steal(). They are pointless as talloc_steal() doesn't
have any failure modes that wouldn't cause a segv anyway, and they
tend to clutter the code