Remove known issue from the doc
Remove known issue from the doc

Since this issue was fixed, we can remove that from the docs.
Related-bug: 1413602

Change-Id: Idec08b59fe12b4ebfaaaf9f4b00fb5cc2f453a7f

openstack/sahara,egafford/sahara,egafford/sahara,tellesnobrega/sahara,openstack/sahara,tellesnobrega/sahara