Docs: remove broken link
Created by: camdencheek
The page being linked to here was deleted, which is causing a lint error and build failures on main. This just deletes the link, but we may want to repoint it to a page comparing self-hosted with managed instances (I'm not sure if that exists). For now, this just deletes it to unblock main.
Test plan
Lints should pass.
App preview:
Check out the client app preview documentation to learn more.