This one looks like it was an attempted add that did not work, and then you added again and it is working as another device. If it has a route, that means it is powered on and communicating with the hub. For that one, you would need to figure out what device it is, power it down, and try the refresh method until you get the remove option OR move on to the Z-Stick method.
For the Zstick, did you follow all of the directions here (to the letter)?
-Thread: How To: Remove Z-Wave Ghosts (including using a UZB Stick)
-PDF: Dropbox - Hubitat Remove Ghost Instructions.pdf - Simplify your life
You may need to exclude both instances of the controller and then start at the beginning. Go step-by-step and pay particular attention to when it recommends things in bold (like using NWI method or classic learn mode). The first few times I had to use it, I printed the file and lined each step out as I did it (old Navy QA methodology).
