remove obsolete fix

settings/completion-settings.el

@@ -59,20 +59,6 @@
   :init (require 'ivy-rich-autoloads)
   :config
   (setcdr (assq t ivy-format-functions-alist) #'ivy-format-function-line)
-  ;; overwrite to fix error, see https://github.com/Yevgnen/ivy-rich/issues/115#issuecomment-1336951680
-  (defun ivy-rich--switch-buffer-directory (candidate)
-        "Return directory of file visited by buffer named CANDIDATE, or nil if no file."
-        (let* ((buffer (get-buffer candidate))
-               (fn (buffer-file-name buffer)))
-          ;; if valid filename, i.e. buffer visiting file:
-          (if fn
-              ;; return containing directory
-              ;; (directory-file-name fn)  ;; REMOVED
-              (file-name-directory fn)     ;; ADDED
-            ;; else if mode explicitly offering list-buffers-directory, return that; else nil.
-            ;; buffers that don't explicitly visit files, but would like to show a filename,
-            ;; e.g. magit or dired, set the list-buffers-directory variable
-            (buffer-local-value 'list-buffers-directory buffer))))
   (require 'all-the-icons-ivy-rich)  ;; as suggested load `all-the-icons-ivy-rich-mode' before `ivy-rich-mode'
   (ivy-rich-mode 1))