Updated openstack/openstack
Project: openstack/nova  3a213d03728716ff01010487ef7b06e86a6f6174

Remove unnecessary error log in cell API

There are unnnecessary error logs in cell API. It tried to log
error for invalid input which is not necessary because we already
raises exception for the bad request.
This patch removes them in both v2/v3 API.

Change-Id: Idd239903aa830f5d8fe50336dfa63a43b617584f