Every time I click Network, I get a message in a pale yellow drop-down box that says,
Network discovery and file sharing are turned off. Network computers and devices are not visible. Click to change...

I know that these things are turned off, because I turned them off myself.
How can I make this useless message stop appearing?
Edit: I have already turned off network discovery and file sharing. That's not the problem. I want to turn off the useless message, while leaving network discovery and file sharing turned off.