I've added on Review Board http://rb.freedroid.org/r/2320 a patch so scripted
droids doesn't respawn by default.

I've been checking a few things but when I've touched the graphic repository
I've remembered that a dead corpse is part from the enemy, so what I've gathered
thus far is:

There's no "corpse". 
The corpse is, nothing more and nothing less, how the enemy looks after having died.

To erase the "corpse" you need to get rid from the enemy altogether.

* If we replaced the dead enemy with a volatile obstacle and got it "invisible",
it could be done rather easily: But, uh, I don't think I need to comment on that
approach.

* Another approach is a function to delete dead bots and free some memory. That
solves the problem on the arena but it's a somewhat dangerous function.
After all, how will you know what is on the dead list? =) 
While on the Arena that work pretty well, in some places it offers a share of risks.

Anyway, if you guys think on something else fell free to comment.
Also, at fluzz request, done at 2017-02-18 22:35:42 UTC, changing priority from
“bug” to “feature”.