Fix build on F33+
    
    Previous to F33, the files /usr/lib/rpm/config.{guess,sub} existed, and
    this package copied them into the autoconf directory.  This was added in
    2008 with no explanatory comment other than "new upstream version".  RPM
    no longer includes those files, though copies do still exist in
    /usr/lib/rpm/redhat.  The package appears fine without them.