/**
  * Remove a request variable.
  * @param string $key
  * @param boolean $prefix (optional) false to omit Gallery variable prefix (not recommended)
  */
 public static function removeRequestVariable($key, $prefix=true)
 {
     if ($prefix) {
         $key = MYOOS_FORM_VARIABLE_PREFIX . $key;
     }
     $keyPath = preg_split('/[\[\]]/', $key, -1, PREG_SPLIT_NO_EMPTY);
     MyOOS_Utilities::_internalRemoveRequestVariable($keyPath, $_GET);
     MyOOS_Utilities::_internalRemoveRequestVariable($keyPath, $_POST);
 }