fuel/fuel/core/classes/cookie.php
public static function delete($name, $path = null, $domain = null, $secure = null, $http_only = null)
	{
		// Remove the cookie
		unset($_COOKIE[$name]);

		// Nullify the cookie and make it expire
		return static::set($name, null, -86400, $path, $domain, $secure, $http_only);
	}
public static function delete($name, $path = null, $domain = null, $secure = null, $http_only = null)
	{
		// Remove the cookie
		unset($_COOKIE[$name]);

		// Nullify the cookie and make it expire
		return static::set($name, null, -86400, $path, $domain, $secure, $http_only);
	}
public static function delete ( $ name , $ path = null , $ domain = null , $ secure = null , $ http_only = null ) { // Remove the cookie unset ( $ _COOKIE [ $ name ] ) ; // Nullify the cookie and make it expire return static :: set ( $ name , null , - 86400 , $ path , $ domain , $ secure , $ http_only ) ; }
Deletes a cookie by making the value null and expiring it.

Cookie::delete('theme');

@param   string   cookie name
@param   string    path of the cookie
@param   string    domain of the cookie
@param   boolean   if true, the cookie should only be transmitted over a secure HTTPS connection
@param   boolean   if true, the cookie will be made accessible only through the HTTP protocol
@return  boolean
@uses    static::set
Deletes a cookie by making the value null and expiring it .