Fix whitespace

Author: harikrishna-patnala

test/integration/smoke/test_vpc_firewall_rules.py

@@ -180,4 +180,3 @@ def test_02_create_firewall_rule_on_vpc_source_nat_ip(self):
         self.assertEqual(listed_rule.protocol.lower(), "tcp")
         self.assertEqual(int(listed_rule.startport), 19443)
         self.assertEqual(int(listed_rule.endport), 19443)
-