* This method is used to delete any existing Option Group. id of the group
* to be deleted is required field in $params array
*
- * @param array $params (reference) array containing id of the group
+ * @param array $params array containing id of the group
* to be deleted
*
- * @return array (reference) returns flag true if successfull, error
+ * @return array API Result Array
* message otherwise
* {@getfields OptionGroup_delete}
* @access public