Remove uninstalled app from "open at login"

Hello, I have just bought my first Mac and am having trouble with the login items.

I tried the app "Swift Quit", but when I saw it wasn't working I deleted the app. I "moved to bin" the app from the applications folder, and the downloaded installer, and emptied the bin. I have restarted my mac since.

In "Login Items", it still shows, and I am unable to find a way to remove it. When I click any of the items, they don't seem to be selected, and the "-" is greyed out.

Any suggestions would be great, thank you.