Remove lib/norad.gi with NormalizerViaRadical code

This code is undocumented and not called by anything in GAP, i.e. dead.

Author: fingolfin

lib/norad.gi dev/deleted-code/norad.gilib/norad.gi renamed to dev/deleted-code/norad.gi

@@ -206,7 +206,6 @@ ReadLib( "fitfree.gi"  );
 ReadLib( "permdeco.gi" );
 ReadLib( "clashom.gi"  );
 ReadLib( "maxsub.gi"   );
-ReadLib( "norad.gi"    );
 
 ReadLib( "autsr.gi"    );
 ReadLib( "morpheus.gi" );