flight/core/Dispatcher.php
public function clear($name = null) {
        if ($name !== null) {
            unset($this->events[$name]);
            unset($this->filters[$name]);
        }
        else {
            $this->events = array();
            $this->filters = array();
        }
    }
public function clear($name = null) {
        if ($name !== null) {
            unset($this->events[$name]);
            unset($this->filters[$name]);
        }
        else {
            $this->events = array();
            $this->filters = array();
        }
    }
Clears an event. If no name is given,
all events are removed.

@param string $name Event name