diff -r df91e2df6ba3 -r 37c0d93fb166 mercurial/scmutil.py
--- a/mercurial/scmutil.py	Thu Oct 03 18:01:21 2013 +0200
+++ b/mercurial/scmutil.py	Tue Oct 15 00:51:04 2013 +0900
@@ -271,6 +271,9 @@
     def stat(self, path=None):
         return os.stat(self.join(path))
 
+    def unlink(self, path=None):
+        return util.unlink(self.join(path))
+
 class vfs(abstractvfs):
     '''Operate files relative to a base directory