dry out container unittests
dry out container unittests

Change Ifcc4392ffa4df485ce3c62a35d0fcc8c93de74aa introduced
TestContainerController4Replicas as a subclass of
TestContainerController. And there is duplicated code
block to override setUp method.

This patch removed the duplicated code block.

Change-Id: Iad0b64cba52554b89dbd959475a2ce7c0d9a20eb

notmyname/swift,smerritt/swift,psachin/swift,swiftstack/swift,nadeemsyed/swift,hurricanerix/swift,notmyname/swift,tipabu/swift,openstack/swift,clayg/swift,matthewoliver/swift,redbo/swift,revoer/keystone-8.0.0,tipabu/swift,tipabu/swift,smerritt/swift,nadeemsyed/swift,redbo/swift,larsbutler/swift,clayg/swift,aerwin3/swift,smerritt/swift,revoer/keystone-8.0.0,williamthegrey/swift,matthewoliver/swift,swiftstack/swift,clayg/swift,notmyname/swift,larsbutler/swift,clayg/swift,nadeemsyed/swift,matthewoliver/swift,openstack/swift,smerritt/swift,nadeemsyed/swift,hurricanerix/swift,prashanthpai/swift,psachin/swift,psachin/swift,swiftstack/swift,hurricanerix/swift,williamthegrey/swift,matthewoliver/swift,openstack/swift,openstack/swift,psachin/swift,aerwin3/swift,notmyname/swift,tipabu/swift,hurricanerix/swift,prashanthpai/swift