Remove not used code

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/tests/test_machine.py

@@ -266,8 +266,6 @@ class WeblateTranslationTest(ViewTestCase):
     def test_similar_timeout(self):
         backup = appsettings.MT_WEBLATE_LIMIT
         try:
-            # Ensure the index exists, it might be corrupted otherwise here
-            get_source_index()
             appsettings.MT_WEBLATE_LIMIT = 0
             machine = WeblateSimilarTranslation()
             unit = Unit.objects.all()[0]