babel: sass: Use generic expansion function

	* ob-sass.el (org-babel-execute:sass): Use generic expansion
	function
	(org-babel-expand-body:sass): Delete function

lisp/ob-sass.el

@@ -43,9 +43,6 @@
 
 (defvar org-babel-default-header-args:sass '())
 
-(defun org-babel-expand-body:sass (body params)
-  "Expand BODY according to PARAMS, return the expanded body." body)
-
 (defun org-babel-execute:sass (body params)
   "Execute a block of Sass code with Babel.
 This function is called by `org-babel-execute-src-block'."
@@ -58,7 +55,7 @@ This function is called by `org-babel-execute-src-block'."
 		      " " (org-babel-process-file-name in-file)
 		      " " (org-babel-process-file-name out-file))))
     (with-temp-file in-file
-      (insert (org-babel-expand-body:sass body params))) (shell-command cmd)
+      (insert (org-babel-expand-body:generic body params))) (shell-command cmd)
     (or file (with-temp-buffer (insert-file-contents out-file) (buffer-string)))))
 
 (defun org-babel-prep-session:sass (session params)