Clean-up some now unnecessary diff against master

* lisp/emacs-lisp/autoload.el (update-directory-autoloads):
	.eln files have been moved so remove the '.eln' match.

	* lisp/emacs-lisp/bytecomp.el (byte-compile-refresh-preloaded):
	Likewise.

	* lisp/emacs-lisp/find-func.el (find-library-suffixes): Clean-up
	as '.eln' is no more in `load-suffixes'.

	* lisp/help-fns.el (find-lisp-object-file-name): Clean-up as
	`symbol-file' will return the '.elc' file.

	* src/lread.c (Fget_load_suffixes): Remove logic as '.eln' is not
	anymore in load-suffixes.
	(openp): Two spaces.

lisp/emacs-lisp/autoload.el

@@ -1047,7 +1047,7 @@ write its autoloads into the specified file instead."
                        ;; we don't want to depend on whether Emacs was
                        ;; built with or without modules support, nor
                        ;; what is the suffix for the underlying OS.
-		       (unless (string-match "\\.\\(elc\\|eln\\|so\\|dll\\)" suf)
+		       (unless (string-match "\\.\\(elc\\|so\\|dll\\)" suf)
                          (push suf tmp)))
                      (concat "\\`[^=.].*" (regexp-opt tmp t) "\\'")))
 	 (files (apply #'nconc