In standalone Info, there is a command "M-x kill-node" which is supposed to be used to forget about nodes that are being viewed or have been viewed. However, it doesn't work, and isn't useful anyway.
It can only be used to kill nodes that are currently being displayed, and not in the history of a window. There's no way to distinguish between nodes with the same name. Also, there's also a check in the kill_node function that we're killing a node in the current window (the ChangeLog says this was added in May 1998). For example, with info 5.2, try "info bash" followed by "C-x 2 mintro<ret> C-x o mdef<ref> M-x kill-node<ret><tab>". You get the options "Definitions Introduction". Type "Intro<tab><ret>". Then you get the error message "Cannot kill node `Introduction'". Is it okay to remove this command?
