mismerged log spacemap comment for metaslab_verify_weight_and_frag
When the log spacemap commit was merged in ZoL, the
metaslab_verify_unflushed_changes() debugging function
was deleted as the feature was pretty much stable by
then. Unfortunately though there was a reference to
it from a comment in metaslab_verify_weight_and_frag().
This patch deletes the reference and pastes that
comment as is.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Matt Ahrens <mahrens@delphix.com> Reviewed-by: Igor Kozhukhov <igor@dilos.org> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes #9097