Share -unauthorized Users
I have two places listed under Share (Finder) I do not recognize either of them, how do I remove?
MacBook Pro (Retina, 15-inch, Mid 2014)
Do you mean the Shared section in the Sidebar?
You aren't sharing to them. They are showing up because they are offering sharing services to you.
There isn't a way to remove them. They will time out if they no longer appear on the network after a while.