Fix regression on outdating precomp files
Fix regression on outdating precomp files

Trying not to overwrite already existing precomp files made updating
outdated precomp files regress again. Instead of further complicating
the check or sprinkling :force flags everywhere, we now just delete
outdated precomp files on sight.

Thanks to grondilu++ for reporting!

azawawi/rakudo,raydiak/rakudo,tony-o/rakudo,zostay/rakudo,jonathanstowe/rakudo,tony-o/rakudo,nbrown/rakudo,tbrowder/rakudo,ab5tract/rakudo,usev6/rakudo,dankogai/rakudo,zostay/rakudo,lucasbuchala/rakudo,usev6/rakudo,ugexe/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,ugexe/rakudo,awwaiid/rakudo,awwaiid/rakudo,lucasbuchala/rakudo,ab5tract/rakudo,rakudo/rakudo,awwaiid/rakudo,ab5tract/rakudo,samcv/rakudo,LLFourn/rakudo,tony-o/rakudo,labster/rakudo,sjn/rakudo,nbrown/rakudo,softmoth/rakudo,ungrim97/rakudo,b2gills/rakudo,jonathanstowe/rakudo,nbrown/rakudo,ugexe/rakudo,ungrim97/rakudo,tbrowder/rakudo,jonathanstowe/rakudo,Gnouc/rakudo,salortiz/rakudo,tony-o/rakudo,b2gills/rakudo,azawawi/rakudo,zostay/rakudo,paultcochrane/rakudo,salortiz/rakudo,dankogai/rakudo,Gnouc/rakudo,softmoth/rakudo,lucasbuchala/rakudo,sjn/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,nbrown/rakudo,zostay/rakudo,samcv/rakudo,jonathanstowe/rakudo,tbrowder/rakudo,ungrim97/rakudo,softmoth/rakudo,MasterDuke17/rakudo,paultcochrane/rakudo,azawawi/rakudo,labster/rakudo,raydiak/rakudo,LLFourn/rakudo,nbrown/rakudo,softmoth/rakudo,LLFourn/rakudo,lucasbuchala/rakudo,usev6/rakudo,tbrowder/rakudo,labster/rakudo,dankogai/rakudo,rakudo/rakudo,usev6/rakudo,salortiz/rakudo,LLFourn/rakudo,azawawi/rakudo,awwaiid/rakudo,paultcochrane/rakudo,ab5tract/rakudo,b2gills/rakudo,jonathanstowe/rakudo,MasterDuke17/rakudo,lucasbuchala/rakudo,b2gills/rakudo,ab5tract/rakudo,samcv/rakudo,tony-o/rakudo,ugexe/rakudo,samcv/rakudo,ungrim97/rakudo,sjn/rakudo,paultcochrane/rakudo,b2gills/rakudo,rakudo/rakudo,MasterDuke17/rakudo,rakudo/rakudo,paultcochrane/rakudo,labster/rakudo,tony-o/rakudo,Gnouc/rakudo,labster/rakudo,sjn/rakudo,sjn/rakudo,awwaiid/rakudo,Gnouc/rakudo,raydiak/rakudo,MasterDuke17/rakudo,ungrim97/rakudo,azawawi/rakudo,rakudo/rakudo,salortiz/rakudo,labster/rakudo,nbrown/rakudo,salortiz/rakudo,dankogai/rakudo,samcv/rakudo,ugexe/rakudo,dankogai/rakudo,LLFourn/rakudo,tbrowder/rakudo,tbrowder/rakudo,rakudo/rakudo,raydiak/rakudo,softmoth/rakudo,usev6/rakudo,salortiz/rakudo