Someone got it wrong. The FreeSpace Wiki has a large non-canon/fanon section section and it's intended to provide the community with detailled info on anything concerning FS.
Removing the connection to the mod that uses it is not an option. There are many INF ships that will never be used in non-INF campaigns, just to give an example, and should keep the reference to INF like the others.
What ships are these? Do you know for a fact that someone will never use them? Or has Woomeister prohibited their use in the read me? The best way to promote the use of ships is to have them accessible to people. People don't want to go through all their VPs and search 5 different websites, or 3-4 different wiki pages looking for ships. Or even just looking AT ships. Some people, like me, they won't necessarily ever use any of this stuff. They have great ambitions about using ships, they have great campaign ideas, but it'll never happen. But still they might enjoy half an hour just looking at all the different ships and dreaming up ideas for them.
Quite honestly there's absolutely nothing worse that someone trying to look up ships and having to look in 5 or 6 different places to find everything. That was my purpose when I started adding ALL the ships to the user created ships page. I'm all for giving credit where credit is due, if it comes out in Inferno, or BWO or whatever then sure, say that, and provide links to the campaign, etcetera and so forth. Even the text option you list is probably much preferable. But if a person wants to just look at the ships, from all the mods, and has to look in more than one place, there's something wrong.
And when I say all the mods I mean all the freespace mods not all the mods including TBP, WC etcetera. They'd have their own pages.