6ce40aee83
neutron 'quota_details' extension was added in Pike to provide a convenient way to retrieve resource usage in neutron without listing individual resources. It was added in Pike release and we will have six releases since then once Ussuri release is shipped. Enough time has passed to migrate it to the new mechanism, so it is time to deprecate the legacy way for future cleanup. Change-Id: Ie0b4613bf9fdcd96481b3bb1139b4fb153bfef83