Need Clear Client IP

[Megnatis]

https://superuser.com/questions/1744297/remove-client-information-in-openvpn
I use script to create OpenVpn Server and the connection Create for client I found OpenVpn never clear the Client Ip Address from Packets and The Sites Can easily find my real IP Address and Geo Location! so how can I remove this information : example : My OpenVpn Server is : 5.X.X.X My Client Ip is : 1.X.X.X

if I connected Into OpenVpn Server : The result Showed in https://www.iplocation.net/ is 5.X.X.X but if I use this script in php :

if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
$ip = $_SERVER['REMOTE_ADDR'];
}

it will be show me 1.X.X.X that is my client ip address!