zulip_bots: Remove redundant custom tests in encrypt.
@@ -39,7 +39,3 @@ class EncryptHandler(object):
return send_content
handler_class = EncryptHandler
-
-if __name__ == '__main__':
- assert encrypt('ABCDabcd1234') == 'NOPQnopq1234'
- assert encrypt('NOPQnopq1234') == 'ABCDabcd1234'
