CAllCrmActivity::DeleteCalendarEvent

static function DeleteCalendarEvent(&$arFields)
{
	$provider = self::GetActivityProvider($arFields);
	$providerTypeId = isset($arFields['PROVIDER_TYPE_ID']) ? (string) $arFields['PROVIDER_TYPE_ID'] : null;

	if ($provider === null  || !CModule::IncludeModule('calendar'))
	{
		return false;
	}

	$calendarEventId = isset($arFields['CALENDAR_EVENT_ID']) ? (int)$arFields['CALENDAR_EVENT_ID'] : 0;

	if ($calendarEventId <= 0)
	{
		return false;
	}

	self::$IGNORE_CALENDAR_EVENTS = true;
	CCalendarEvent::Delete(array('id' => $calendarEventId, 'bMarkDeleted' => true));
	self::$IGNORE_CALENDAR_EVENTS = false;
	return true;
}