Remove importutils from oslo config
Remove importutils from oslo config

The importutils module is only used by other oslo modules, so
remove it from openstack-common.conf. It'll be pulled in
automatically if it's needed.

Change-Id: Iaa7e047a9ff76f911f8c64b45ceb1f240855670a

magic0704/python-keystoneclient,ging/python-keystoneclient,darren-wang/ksc,jamielennox/python-keystoneclient,Mercador/python-keystoneclient,klmitch/python-keystoneclient,sdpp/python-keystoneclient,magic0704/python-keystoneclient,Mercador/python-keystoneclient,sdpp/python-keystoneclient,alexpilotti/python-keystoneclient,jamielennox/python-keystoneclient,ging/python-keystoneclient,alexpilotti/python-keystoneclient,klmitch/python-keystoneclient,darren-wang/ksc,jamielennox/python-keystoneclient