Remove ability to set public_read

Bug: 177799191
Change-Id: Ia5e2505bf48a78f5d899c6c4972fbbf2fc71e67f
diff --git a/tools/test.py b/tools/test.py
index 55dbac0..27c07de 100755
--- a/tools/test.py
+++ b/tools/test.py
@@ -225,8 +225,7 @@
       relative_file = absolute_file[len(upload_dir)+1:]
       if (should_upload(relative_file, absolute_file)):
         utils.upload_file_to_cloud_storage(absolute_file,
-                                           destination_dir + relative_file,
-                                           public_read=False)
+                                           destination_dir + relative_file)
   url = 'https://storage.googleapis.com/%s/%s/test/index.html' % (BUCKET, file_name)
   print('Test results available at: %s' % url)