Remove misleading lists of lispy-modes

These couldn't meaningfully be altered anywhere else, it seems, so
better not to expose them.

lisp/init-lisp.el

@@ -179,26 +179,10 @@ there is no current file, eval the current buffer."
   "Enable features useful in any Lisp mode."
   (run-hooks 'sanityinc/lispy-modes-hook))
 
-(defun sanityinc/emacs-lisp-setup ()
-  "Enable features useful when working with elisp."
-  (set-up-hippie-expand-for-elisp))
-
-(defconst sanityinc/elispy-modes
-  '(emacs-lisp-mode ielm-mode)
-  "Major modes relating to elisp.")
-
-(defconst sanityinc/lispy-modes
-  (append sanityinc/elispy-modes
-          '(lisp-mode inferior-lisp-mode lisp-interaction-mode))
-  "All lispy major modes.")
-
 (require 'derived)
 
-(dolist (hook (mapcar #'derived-mode-hook-name sanityinc/lispy-modes))
-  (add-hook hook 'sanityinc/lisp-setup))
-
-(dolist (hook (mapcar #'derived-mode-hook-name sanityinc/elispy-modes))
-  (add-hook hook 'sanityinc/emacs-lisp-setup))
+(dolist (mode '(emacs-lisp-mode ielm-mode lisp-mode inferior-lisp-mode lisp-interaction-mode))
+  (add-hook (derived-mode-hook-name mode) 'sanityinc/lisp-setup))
 
 (when (boundp 'eval-expression-minibuffer-setup-hook)
   (add-hook 'eval-expression-minibuffer-setup-hook #'eldoc-mode))