The most weird thing about this scene is that neither General Veers Death or the actual shield generator explosion are actually in the script.

Or at least not in any script that I have seen.

Some believe it to be an idea that was cut out of the film early on, which I am fine with because I don't really know the answer.

But there is also evidence that points to the shots that are of general veers as in looking at the back of his head / helmet are actually not the actor that plays general veers and these scenes were filmed after he left the production by a stand in...

It's a bit of a weird one and must of been the subject of some debate.

In the end the shield generator destruction was what made it in to the film, but much of the shots that were made for the sequence of Veers death still ended up in the film in some way shape or form.

There is also something I personally think about too is that, the suicide and deaths attributed to the shot might have been one bout of violence too far. Empire Strikes Back is fairly graphic for a PG film in the 80's although violence was very popular in the 80's. It's another possibility for it's removal.

The Idea was eventually recycled and used in ROTJ