Addressed PR comments.

python/minimal_test.py

diff --git a/python/minimal_test.py b/python/minimal_test.py
index ce17ee7..072250a 100644
--- a/python/minimal_test.py
+++ b/python/minimal_test.py
@@ -24,7 +24,7 @@
 # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
-"""A bare-bones unit test, to be removed once upb can pass existing unit tests."""
+"""A bare-bones unit test that doesn't load any generated code."""
 
 
 import unittest