* lisp/emacs-lisp/shadow.el (find-emacs-lisp-shadows): * lisp/net/newst-backend.el (newsticker-cache-filename) (newsticker--cache-save-version1, newsticker--cache-update) (newsticker--cache-read-version1): * lisp/obsolete/vc-arch.el (vc-arch-command): Remove items obsolete since Emacs 23.