Use ctools functions instead of querys for revert features

At this moment, features.ctools.inc contains this function:

function ctools_component_features_revert($component, $module = 'foo') {
  $info = _ctools_features_get_info();
  $objects = module_invoke($module, $info[$component]['default_hook']);
  if (!empty($objects)) {
    $schema = ctools_export_get_schema($component);
    $export = $schema['export'];
    $names = db_placeholders(array_keys($objects), $schema['fields'][$export['key']]['type']);
    db_query("DELETE FROM {{$component}} WHERE {$export['key']} IN ({$names})", array_keys($objects));
  }
}

But, recently, ctools allows to use joins in exports, and there is an issue to use this joins objects are removed from tables: see #853114: Delete objects from tables considering joins

I think this function should only call to ctools_export_crud_delete() instead to call to DELETE FROM directly.