Use {@inheritdoc} in the Comment data view ...

... instead of duplicating method documentation.

refs #8614

modules/monitoring/library/Monitoring/DataView/Comment.php

@@ -9,9 +9,7 @@ namespace Icinga\Module\Monitoring\DataView;
 class Comment extends DataView
 {
     /**
-     * Retrieve columns provided by this view
-     *
-     * @return array
+     * {@inheritdoc}
      */
     public function getColumns()
     {
@@ -34,9 +32,7 @@ class Comment extends DataView
     }
 
     /**
-     * Retrieve default sorting rules for particular columns. These involve sort order and potential additional to sort
-     *
-     * @return array
+     * {@inheritdoc}
      */
     public function getSortRules()
     {