Removing broadcasting from Octave

[Jordi Gutiérrez Hermoso]

I think the whole thing may simply be a bad idea.

The whole point was to do broadcasting as naturally and as frequently
as Numpy does. However, we have to write code that works in Matlab,
even if it's written for Octave. Plus we have the cultural baggage
that this is not how Matlab works, therefore Octave should not work
this way either.

I can just back out all the csets that enabled this. There's no point
in introducing new syntax for this. We already have syntax, and the
obscurity of some operator like x $./ y vs bsxfun(@rdivide, x, y) is
not advantageous; they're both equally obscure, and the whole point
was to make this natural and frequent by using common syntax.

I imagine there is more support for removing this feature than to keep it.

- Jordi G. H.