; Minor simplification of two recent changes

lisp/simple.el

@@ -1852,7 +1852,7 @@ to get different commands to edit and resubmit."
 			    (and (commandp (function-called-at-point))
 				 (format "%S" (function-called-at-point)))))
 		     (all (sort (minibuffer-default-add-completions)
-				(lambda (a b) (string< a b)))))
+                                #'string<)))
 		 (if def
 		     (cons def (delete def all))
 		   all)))))

test/lisp/emacs-lisp/bytecomp-tests.el

@@ -479,8 +479,7 @@ Subtests signal errors if something goes wrong."
 (ert-deftest bytecomp-tests--warnings ()
   (with-current-buffer (get-buffer-create "*Compile-Log*")
     (let ((inhibit-read-only t)) (erase-buffer)))
-  (dolist (f '(my-test0 my--test11 my--test12 my--test2))
-    (fset f nil))
+  (mapc #'fmakunbound '(my-test0 my--test11 my--test12 my--test2))
   (test-byte-comp-compile-and-load t
     '(progn
        (defun my-test0 ()