Fix bad Log statement in nova-manage

Remove the log statement per discussion in the bug report
https://bugs.launchpad.net/nova/+bug/1018431/comments/3

Fixes bug 1018431

Change-Id: Ia6fe511ae23155de8b78689639b53a0d9ed1d051
(cherry picked from commit 6b137d8bec08a170e06fc011637c620fe76cf90d)
Merge "Fix bad Log statement in nova-manage" into stable/folsom