Removing your gold password entirely is not possible.
However, you can enable "Remember Gold Password On This Device" here if you want to avoid to re-enter your gold password each time:
https://forums.d2jsp.org/gold.php?i=1234935&a=2Be aware that this could lead to an unintended purchase of site features like additional friend slots etc which can not be refunded.
Quote (Help - Forum Gold Password)
The Forum Gold Password is a feature that was added to increase the protection of your account and of your Forum Gold. It is extremely important to have your gold password set, as it prevents the risk of buying features accidentally. This is also another Password that can protect your account.
Taken from here:
https://forums.d2jsp.org/info.php?p=28