code comment redundant
code comment redundant

Change-Id: I75808f30587c048d83d98cb61de12aaad99667a8
Closes-Bug: #1676039

openstack/nova,vmturbo/nova,rahulunair/nova,jianghuaw/nova,vmturbo/nova,rahulunair/nova,vmturbo/nova,phenoxim/nova,gooddata/openstack-nova,mahak/nova,Juniper/nova,gooddata/openstack-nova,Juniper/nova,rajalokan/nova,Juniper/nova,rajalokan/nova,Juniper/nova,klmitch/nova,openstack/nova,klmitch/nova,rajalokan/nova,rahulunair/nova,mahak/nova,jianghuaw/nova,phenoxim/nova,jianghuaw/nova,vmturbo/nova,jianghuaw/nova,gooddata/openstack-nova,mikalstill/nova,rajalokan/nova,gooddata/openstack-nova,klmitch/nova,mahak/nova,mikalstill/nova,mikalstill/nova,klmitch/nova,openstack/nova