Remove dead code.
Remove dead code.

While it is true that one *could* call ContainerBroker.get_info() with
include_metadata=True, it is also true that nobody actually does.

It's also true that the code path taken when include_metadata=True is
broken in the case of non-ASCII metadata keys
(e.g. X-Container-Meta-☃: snowman), so leaving it around is just
asking for future pain.

Change-Id: I4931add4b8fb7c4f57820e52f182c21040d8db10

Akanoa/swift,redbo/swift,openstack/swift,levythu/swift,swiftstack/swift,swiftstack/swift,citrix-openstack/build-swift,revoer/keystone-8.0.0,openstack/swift,JioCloud/swift,hurricanerix/swift,redbo/swift,bradleypj823/swift,matthewoliver/swift,maginatics/swift,shibaniahegde/OpenStak_swift,nadeemsyed/swift,bouncestorage/swift,tsli/test,matthewoliver/swift,tipabu/swift,mjzmjz/swift,notmyname/swift,nadeemsyed/swift,Em-Pan/swift,sarvesh-ranjan/swift,mjzmjz/swift,clayg/swift,orion/swift-config,citrix-openstack/build-swift,bkolli/swift,zaitcev/swift-lfs,matthewoliver/swift,eatbyte/Swift,openstack/swift,shibaniahegde/OpenStak_swift,sarvesh-ranjan/swift,zackmdavis/swift,mjwtom/swift,xiaoguoai/ec-dev-swift,hbhdytf/mac,levythu/swift,dencaval/swift,Khushbu27/Tutorial,aerwin3/swift,smerritt/swift,Em-Pan/swift,williamthegrey/swift,notmyname/swift,thiagodasilva/swift,takeshineshiro/swift,gold3bear/swift,AfonsoFGarcia/swift,psachin/swift,zackmdavis/swift,hbhdytf/mac2,xiaoguoai/ec-dev-swift,notmyname/swift,gold3bear/swift,scality/ScalitySproxydSwift,clayg/swift,smerritt/swift,prashanthpai/swift,takeshineshiro/swift,bradleypj823/swift,IPVL/swift-kilo,psachin/swift,eatbyte/Swift,smerritt/swift,anishnarang/gswift,JioCloud/swift,redhat-openstack/swift,tipabu/swift,orion/swift-config,daasbank/swift,scality/ScalitySproxydSwift,psachin/swift,redhat-openstack/swift,prashanthpai/swift,daasbank/swift,anishnarang/gswift,NeCTAR-RC/swift,tipabu/swift,iostackproject/IO-Bandwidth-Differentiation,larsbutler/swift,AfonsoFGarcia/swift,hbhdytf/mac2,williamthegrey/swift,wenhuizhang/swift,notmyname/swift,Akanoa/swift,tsli/test,hurricanerix/swift,nadeemsyed/swift,hbhdytf/mac2,hbhdytf/mac,revoer/keystone-8.0.0,bouncestorage/swift,clayg/swift,larsbutler/swift,Seagate/swift,Khushbu27/Tutorial,NeCTAR-RC/swift,matthewoliver/swift,mjwtom/swift,dpgoetz/swift,zaitcev/swift-lfs,maginatics/swift,wenhuizhang/swift,tipabu/swift,openstack/swift,hurricanerix/swift,iostackproject/IO-Bandwidth-Differentiation,Seagate/swift,swiftstack/swift,hurricanerix/swift,dpgoetz/swift,psachin/swift,citrix-openstack-build/swift,bkolli/swift,nadeemsyed/swift,smerritt/swift,hbhdytf/mac2,rackerlabs/swift,citrix-openstack-build/swift,aerwin3/swift,IPVL/swift-kilo,rackerlabs/swift,clayg/swift,dencaval/swift,thiagodasilva/swift