Use built-in print() instead of print statement

In python 3 print statement is not supported, so we should use
only print() functions.

This patch also removes print in unit test, left by accident

Fixes bug 1226943

Change-Id: I5ace50cb9e149682344b4c986ef9318f8dc50f72

neutron/tests/unit/nec/test_nec_agent.py

@@ -172,9 +172,6 @@ class TestNecAgent(TestNecAgentBase):
         self._check_report_state([dummy_vif] * 5, 5, fail_mode)
         self._check_report_state([], 0, fail_mode)
 
-        print 'record_state', self.record_calls
-        print 'num_ports_hist', self.num_ports_hist
-
         # Since loopingcall start is mocked, call_count is same as
         # the call count of check_report_state.
         self.assertEqual(state_rpc.report_state.call_count, 4)

neutron/tests/unit/nec/test_pfc_driver.py

@@ -427,7 +427,6 @@ class PFCIdConvertTest(base.BaseTestCase):
 
     def test_convert_tenant_id(self):
         ofc_t_id = self.generate_random_ids(1)
-        print ofc_t_id
         ret = self.driver.convert_ofc_tenant_id(self.ctx, ofc_t_id)
         self.assertEqual(ret, '/tenants/%s' % ofc_t_id)
 

neutron/tests/unit/nec/test_trema_driver.py

@@ -241,7 +241,6 @@ class TremaFilterDriverTest(TremaDriverTestBase):
              'status': "ACTIVE"}
         if filter_dict:
             f.update(filter_dict)
-        print 'filter=%s' % f
 
         net_path = "/networks/%s" % n
 
@@ -462,8 +461,7 @@ class TremaIdConvertTestBase(base.BaseTestCase):
 
         ret = self.driver.convert_ofc_port_id(self.ctx, ofc_p_id, t_id, n_id)
         exp = port_path_template % {'network': ofc_n_id, 'port': ofc_p_id}
-        print 'exp=', exp
-        print 'ret=', ret
+
         self.assertEqual(ret, exp)
         self.mox.VerifyAll()