Remove spurious logs from test_loguserdata
Remove spurious logs from test_loguserdata

test_loguserdata wasn't a HeatTestCase based-tests, so printed some
useless logs to stdout. This fixes it.

Change-Id: Ib8a458ead43116f9a59709265405b9553c30f960

dims/heat,steveb/heat,gonzolino/heat,cwolferh/heat-scratch,dragorosson/heat,steveb/heat,noironetworks/heat,dragorosson/heat,gonzolino/heat,openstack/heat,jasondunsmore/heat,jasondunsmore/heat,cwolferh/heat-scratch,openstack/heat,dims/heat,noironetworks/heat