DataView\Hoststatus: Adjust how to handle filter columns

refs #9029

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

@@ -64,7 +64,7 @@ class HostStatus extends DataView
     /**
      * {@inheritdoc}
      */
-    public function getFilterColumns()
+    public function getStaticFilterColumns()
     {
         return array(
             'host',
@@ -83,9 +83,7 @@ class HostStatus extends DataView
     }
 
     /**
-     * The sort rules for this query
+     * {@inheritdoc}
-     *
-     * @return array
      */
     public function getSortRules()
     {
@@ -112,17 +110,4 @@ class HostStatus extends DataView
             )
         );
     }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function isValidFilterTarget($column)
-    {
-        if ($column[0] === '_'
-            && preg_match('/^_(?:host|service)_/', $column)
-        ) {
-            return true;
-        }
-        return parent::isValidFilterTarget($column);
-    }
 }