Drupal 7: hierarchy disabled setting on taxonomy vocabulary I would like to disable taxonomy hierarchy for a vocabulary.
In older versions of Drupal there used to be a setting on the vocabulary page: 


  Hierarchy: disabled


Can do I achieve this with Drupal 7?
I found how to do it. I ended up using hook_form_FORM_ID_alter on the taxonomy form in the admin area, like so:

function hook_form_taxonomy_overview_terms_alter(&amp;$form, &amp;$form_state) {    
        $form['#parent_fields'] = FALSE;
}