This can be deleted because of the new trait

src/Jenssegers/Mongodb/Model.php

@@ -146,16 +146,6 @@ abstract class Model extends \Jenssegers\Eloquent\Model {
         return new MongoDate;
     }
 
-    /**
-     * Get the fully qualified "deleted at" column.
-     *
-     * @return string
-     */
-    public function getQualifiedDeletedAtColumn()
-    {
-        return $this->getDeletedAtColumn();
-    }
-
     /**
      * Get the table associated with the model.
      *