Remove random print statements

Noticed a random print statement in the code and then grep around for the rest.
Might as well remove these.

Change-Id: Ieb2d72cf55cbf077c2e824d430707211d1f87b8e

nova/tests/test_libvirt_vif.py

@@ -584,7 +584,6 @@ class LibvirtVifTestCase(test.TestCase):
                                      self.mapping_8021qbg)
 
         doc = etree.fromstring(xml)
-        print xml
         ret = doc.findall('./devices/interface')
         self.assertEqual(len(ret), 1)
         node = ret[0]

nova/tests/test_vmwareapi_vmops.py

@@ -56,7 +56,6 @@ class VMwareVMOpsTestCase(test.TestCase):
 
     def test_get_machine_id_str(self):
         result = vmops.VMwareVMOps._get_machine_id_str(self.network_info)
-        print result
         self.assertEqual(result,
                          'DE:AD:BE:EF:00:00;192.168.0.100;255.255.255.0;'
                          '192.168.0.1;192.168.0.255;192.168.0.1#')