Do somebody know how to UNLOCK wallet forever? How to delete password. Would be very helpful to know that.
Why do you want to remove the password? Have you tired to change the password to nothing?
I'm not sure you can with do this though with your current wallet.
What you might be able to do is export your private key, then backup your current wallet and delete it from the sharecoin directory. DO NOT DELETE YOUR BACKUP IN CASE THIS DOESNT WORK.
Then open the app and it will create a new wallet.
Finally import that private key into the new wallet.
But, I think this is a bad idea. You don't want a non-encrypted wallet.dat sitting on your PC. If a rouge wallet/app, or something gets on your PC and looks for wallet.dat files and sends it to someone and it isn't encrypted, you've lost all your coins.