[needs design decision] Attack as formation is useless

[marder]

Disabled since ​https://code.wildfiregames.com/rP21042

and even if it is re enabled, it has no effect whatsoever.

It should either be rewritten or completely removed as it is just dead code right now.

[Silier]

It is disabled because it is broken and fixing the potential infinite loop is not trivial when one doesn't want to use a lot of memory or make performance a lot worse

[Freagarach]

Pushing back.