Remove mention of KeySet/KeyBag
Remove mention of KeySet/KeyBag

As they're respecced and implemented

b2gills/rakudo,ungrim97/rakudo,MasterDuke17/rakudo,zostay/rakudo,awwaiid/rakudo,tony-o/rakudo,dwarring/rakudo,usev6/rakudo,awwaiid/rakudo,cognominal/rakudo,paultcochrane/rakudo,cygx/rakudo,lucasbuchala/rakudo,jonathanstowe/rakudo,zhuomingliang/rakudo,ugexe/rakudo,ugexe/rakudo,paultcochrane/rakudo,samcv/rakudo,softmoth/rakudo,jonathanstowe/rakudo,tony-o/deb-rakudodaily,ab5tract/rakudo,labster/rakudo,ab5tract/rakudo,jonathanstowe/rakudo,paultcochrane/rakudo,skids/rakudo,dwarring/rakudo,ungrim97/rakudo,nbrown/rakudo,ab5tract/rakudo,awwaiid/rakudo,labster/rakudo,nbrown/rakudo,nunorc/rakudo,raydiak/rakudo,retupmoca/rakudo,niner/rakudo,dwarring/rakudo,dankogai/rakudo,labster/rakudo,tony-o/deb-rakudodaily,lucasbuchala/rakudo,dankogai/rakudo,dwarring/rakudo,laben/rakudo,skids/rakudo,Leont/rakudo,tony-o/deb-rakudodaily,tbrowder/rakudo,skids/rakudo,tbrowder/rakudo,ugexe/rakudo,sergot/rakudo,zhuomingliang/rakudo,ugexe/rakudo,Leont/rakudo,b2gills/rakudo,cygx/rakudo,Gnouc/rakudo,cognominal/rakudo,softmoth/rakudo,Gnouc/rakudo,sjn/rakudo,niner/rakudo,awwaiid/rakudo,b2gills/rakudo,paultcochrane/rakudo,zostay/rakudo,laben/rakudo,laben/rakudo,skids/rakudo,raydiak/rakudo,retupmoca/rakudo,tbrowder/rakudo,azawawi/rakudo,zhuomingliang/rakudo,tbrowder/rakudo,nbrown/rakudo,tony-o/deb-rakudodaily,MasterDuke17/rakudo,sjn/rakudo,Gnouc/rakudo,Gnouc/rakudo,Leont/rakudo,rakudo/rakudo,Leont/rakudo,jonathanstowe/rakudo,sergot/rakudo,tony-o/rakudo,ugexe/rakudo,azawawi/rakudo,nunorc/rakudo,rakudo/rakudo,softmoth/rakudo,cognominal/rakudo,skids/rakudo,MasterDuke17/rakudo,tony-o/deb-rakudodaily,jonathanstowe/rakudo,LLFourn/rakudo,tony-o/rakudo,MasterDuke17/rakudo,salortiz/rakudo,nbrown/rakudo,teodozjan/rakudo,dankogai/rakudo,usev6/rakudo,dankogai/rakudo,teodozjan/rakudo,zostay/rakudo,rakudo/rakudo,sjn/rakudo,salortiz/rakudo,niner/rakudo,ungrim97/rakudo,samcv/rakudo,nunorc/rakudo,nbrown/rakudo,cognominal/rakudo,niner/rakudo,awwaiid/rakudo,cygx/rakudo,tony-o/deb-rakudodaily,usev6/rakudo,Gnouc/rakudo,zostay/rakudo,raydiak/rakudo,nbrown/rakudo,azawawi/rakudo,rakudo/rakudo,azawawi/rakudo,cygx/rakudo,rakudo/rakudo,LLFourn/rakudo,b2gills/rakudo,softmoth/rakudo,zhuomingliang/rakudo,salortiz/rakudo,retupmoca/rakudo,sjn/rakudo,rakudo/rakudo,labster/rakudo,dankogai/rakudo,azawawi/rakudo,labster/rakudo,salortiz/rakudo,ab5tract/rakudo,tbrowder/rakudo,nunorc/rakudo,retupmoca/rakudo,tony-o/deb-rakudodaily,b2gills/rakudo,teodozjan/rakudo,salortiz/rakudo,samcv/rakudo,ungrim97/rakudo,salortiz/rakudo,sjn/rakudo,sergot/rakudo,cygx/rakudo,labster/rakudo,samcv/rakudo,ungrim97/rakudo,MasterDuke17/rakudo,softmoth/rakudo,tony-o/rakudo,usev6/rakudo,LLFourn/rakudo,LLFourn/rakudo,Gnouc/rakudo,paultcochrane/rakudo,tony-o/rakudo,tony-o/rakudo,ab5tract/rakudo,tbrowder/rakudo,laben/rakudo,usev6/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,samcv/rakudo,lucasbuchala/rakudo,sergot/rakudo,lucasbuchala/rakudo,teodozjan/rakudo,LLFourn/rakudo,cognominal/rakudo,raydiak/rakudo