tweak(org-roam): remove unlinked references from buffer

This never really worked all that well anyways, so it's not worth
keeping around. I can just implement my own version if I want this
feature.

config.org

@@ -3535,21 +3535,11 @@ By default, Roam generates file names containing both a timestamp and the node t
 
 *** Roam Buffer
 
-The unlinked references section is turned off by default for performance reasons, but sometimes I want to see that information when writing notes. I also don't want it to show up for every node, because some of my nodes have quite a large reference list. Let's add a predicate to control when unlinked references are shown.
-
-#+begin_src emacs-lisp
-(defadvice! ~/org-roam-unlinked-references-p (node)
-  "A predicate to control when unlinked references are shown in the `org-roam' buffer."
-  :before-until #'org-roam-unlinked-references-section
-  (assoc "ROAM_NO_UNLINKED" (org-roam-node-properties node)))
-#+end_src
-
 #+begin_src emacs-lisp
 (after! org-roam
   (setq org-roam-mode-sections
         '((org-roam-backlinks-section :unique t)
-          org-roam-reflinks-section
+          org-roam-reflinks-section)))
-          org-roam-unlinked-references-section)))
 #+end_src
 
 *** Roam Links