Remove channelnick/nickinfo/nicklistview from Channel

Removes all uses of channelnick nick info and nicklistview from
Channel, and some other places that used those objects through
Channel.
Remove all nickinfo/channelnick from Server

Had to remove it a lot of other places too because most of them
accessed NickInfo through the Server.
Remove nickinfo/channelnick from query
Remove the last of addressbook and nickinfo/channelnic