Fix string used in recent obsolete variables spec

Fix string used in recent obsolete variables spec

* lisp/font-lock.el (font-lock-comment-face)
(font-lock-comment-delimiter-face, font-lock-string-face)
(font-lock-doc-face, font-lock-doc-markup-face)
(font-lock-keyword-face, font-lock-builtin-face)
(font-lock-function-name-face, font-lock-variable-name-face)
(font-lock-type-face, font-lock-constant-face)
(font-lock-warning-face, font-lock-negation-char-face)
(font-lock-preprocessor-face): Don't quote the apostrophe in the
CURRENT-NAME argument of `make-obsolete-variable', it isn't
expanded by `substitute-command-keys'.

(cherry picked from commit a20f4c7ce192082caf0da5de5b8ab5b4d28c44d3)