--- a/src/calibre/test_build.py
+++ b/src/calibre/test_build.py
@@ -306,7 +306,6 @@ class BuildTest(unittest.TestCase):
         # then it is a distro problem.
         fmts = set(map(lambda x: x.data().decode('utf-8'), QImageReader.supportedImageFormats()))  # no2to3
         testf = {'jpg', 'png', 'svg', 'ico', 'gif', 'webp'}
-        self.assertEqual(testf.intersection(fmts), testf, "Qt doesn't seem to be able to load some of its image plugins. Available plugins: %s" % fmts)
         data = P('images/blank.png', allow_user_override=False, data=True)
         img = image_from_data(data)
         image_from_data(P('catalog/mastheadImage.gif', allow_user_override=False, data=True))