fixed wrong dependency of repo

repo

@@ -3,7 +3,12 @@
 import sys
 
 # copied from portable
-import portable
+def removeReadOnlyFiles(fn, path):
+    if not os.access(path, os.W_OK):
+        os.chmod(path, stat.S_IWUSR)
+        fn(path)
+    else:
+        raise Exception("Could not delete %s" % path)
 
 def stream2str(stream):
     return str(stream, encoding='UTF-8')
@@ -664,7 +669,7 @@ def main(orig_args):
       except CloneFailure:
         for root, dirs, files in os.walk(repodir, topdown=False):
           for name in files:
-            portable.removeReadOnlyFiles(os.remove, os.path.join(root, name))
+            removeReadOnlyFiles(os.remove, os.path.join(root, name))
           for name in dirs:
             os.rmdir(os.path.join(root, name))
         os.rmdir(repodir)