remove some deprecated code in compute that causes a traceback and was only called when migrating from an old storage system
remove some deprecated code in compute that causes a traceback and was only called when migrating from an old storage system

DrXyzzy/smc,tscholl2/smc,tscholl2/smc,sagemathinc/smc,DrXyzzy/smc,DrXyzzy/smc,DrXyzzy/smc,tscholl2/smc,tscholl2/smc,sagemathinc/smc,tscholl2/smc,sagemathinc/smc,sagemathinc/smc