JBIDE-13445 added the possibility to use custom deploy dir on remote server.

Remember: If a remote server is not running with its management ports exposed, do not attempt to add the scanners, as the management connections will fail.

We should disable this option in such case, because right now it just adds confusion - you have a server without management port exposed and not knowing about all the details you change the deployment dir, you will end up with non-working deployment.