Remove an outdated tip about enabling eldoc-mode

Author: bbatsov

cider-repl.el

@@ -434,7 +434,6 @@ present."
 ;;   Java method)
 ;; * Press <\\[cider-doc]> to view the documentation for something (e.g.
 ;;   a var, a Java method)
-;; * Enable `eldoc-mode' to display function & method signatures in the minibuffer.
 ;; * Print CIDER's refcard and keep it close to your keyboard.
 ;;
 ;; CIDER is super customizable - try <M-x customize-group cider> to