Remove experimental adjust-metadata function

fussy.el

@@ -800,26 +800,6 @@ If SCORE does not have indices to highlight, return OBJ unmodified."
              `((cycle-sort-function . fussy--sort)))
       ,@(cdr metadata))))
 
-(defun fussy--adjust-metadata-fzf-native-all-scoring (metadata)
-  "`fussy-fzf-score' takes care of sorting, just return as is."
-  (let ((flex-is-filtering-p
-         ;; JT@2019-12-23: FIXME: this is kinda wrong.  What we need
-         ;; to test here is "some input that actually leads/led to
-         ;; flex filtering", not "something after the minibuffer
-         ;; prompt".  E.g. The latter is always true for file
-         ;; searches, meaning we'll be doing extra work when we
-         ;; needn't.
-         (and
-          fussy-can-adjust-metadata-p
-          (or (not (window-minibuffer-p))
-              (> (point-max) (minibuffer-prompt-end))))))
-    `(metadata
-      ,@(and flex-is-filtering-p
-             `((display-sort-function . identity)))
-      ,@(and flex-is-filtering-p
-             `((cycle-sort-function . identity)))
-      ,@(cdr metadata))))
-
 (defun fussy--sort (completions)
   "Sort COMPLETIONS using `completion-score' and completion length."
   (sort