Remove the extraneous line

Author: srinivasreddy

Lib/test/test_email/test_email.py

@@ -752,7 +752,6 @@ def do_test_invalid_header_names(self, policy, setter, name, value):
                  setter(message, name, value)
             self.assertIn(f"{name!r}", str(cm.exception))
 
-
     def test_binary_quopri_payload(self):
         for charset in ('latin-1', 'ascii'):
             msg = Message()