Revert "Apply <ftp://ftp.math.s.chiba-u.ac.jp/emacs/emacs-24.3-mac-4.5.tar.gz>."

This reverts commit 8451e269f65e65d0946e9ccb8ddd30bef5be7c5f.
Apply <ftp://ftp.math.s.chiba-u.ac.jp/emacs/emacs-24.3-mac-4.6.tar.gz>.