diff --git a/configuration.org b/configuration.org
index 131b685..83323da 100644
--- a/configuration.org
+++ b/configuration.org
@@ -758,25 +758,6 @@ and a backlink to the function and the file."
       (ha/org-capture-fileref-snippet f "SRC" org-src-mode func-name))))
 #+END_SRC
 
-** Jinja related
-
-*** URL-ify and de-URL-ify region
-
-These functions URL-encode/decode a text.  Might be helpful when embedding/extracting data to/from
-HTML.
-
-#+BEGIN_SRC emacs-lisp
-(defun hex-region (start end)
-  "urlencode the region between START and END in current buffer."
-  (interactive "r")
-  (func-region start end #'url-hexify-string))
-
-(defun unhex-region (start end)
-  "de-urlencode the region between START and END in current buffer."
-  (interactive "r")
-  (func-region start end #'url-unhex-string))
-#+END_SRC
-
 ** Utility functions for EDiff
 :PROPERTIES:
 :SOURCE:   http://article.gmane.org/gmane.emacs.orgmode/75222