Remove unrequired default decls.
Remove unrequired default decls.

We ignored these before; now we pay attention to them, and hit a
bootstrap issue.

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