babel: now requires org-macs

* lisp/babel/ob.el (org-macs): now requires org-macs

lisp/babel/ob.el

@@ -30,9 +30,7 @@
 
 ;;; Code:
 (eval-when-compile (require 'cl))
-(eval-and-compile
-  (unless (fboundp 'declare-function)
-    (defmacro declare-function (fn file &optional arglist fileonly))))
+(require 'org-macs)
 
 (defvar org-babel-call-process-region-original)
 (declare-function show-all "outline" ())