erc-remove-user
erc-remove-user is a compiled Lisp function in `erc.el
'.(erc-remove-user NICK)
This function is for internal use only.
Removes the user with nickname NICK from the `erc-server-users'
list as well as from all `erc-channel-users' lists.
See also: `erc-remove-server-user' and
`erc-remove-channel-user'.