Remove aliases of `with-silent-modifications`

Remove aliases of `with-silent-modifications`

There were many reinventions of `with-silent-modifications` (tho
many of them weren't reinventions but copy&paste of code from
font-lock, IIUC).  Now that those don't even need to let-bind
`inhibit-point-motion-hooks` they're really just obsolete.

* lisp/font-lock.el (save-buffer-state): Delete macro.
(font-lock-unfontify-region, font-lock-default-fontify-region):
Use `with-silent-modifications` instead.
(font-lock-after-change-function, font-lock-fontify-block): Don't
let-bind `inhibit-point-motion-hooks`.

* lisp/htmlfontify.el (hfy-save-buffer-state): Delete macro.
(hfy-mark-trailing-whitespace, hfy-unmark-trailing-whitespace):
Use `with-silent-modifications` instead.

* lisp/jit-lock.el (with-buffer-prepared-for-jit-lock): Delete macro.
(jit-lock--debug-fontify, jit-lock-refontify, jit-lock-function)
(jit-lock-fontify-now, jit-lock-force-redisplay)
(jit-lock-deferred-fontify, jit-lock-context-fontify)
(jit-lock-after-change): Use `with-silent-modifications` instead.

* lisp/progmodes/antlr-mode.el (save-buffer-state-x): Delete macro.
(antlr-hide-actions): Use `with-silent-modifications` instead.

* lisp/progmodes/hideshow.el (hs-life-goes-on): Don't
let-bind `inhibit-point-motion-hooks`.