Possible to delete, disband, or otherwise voluntarily kill a unit?

[SurvivalistMerc]

I usually suicide them or use them as arrow fodder.

I hate flagellants. They can hardly kill anything and use up useful supply. My solution is to run them into the nearest force that can kill them or use them as arrow fodder.

You can get independent commanders for about 30 gold. So it shouldn't be all that bad. And...if you put the troops all the way at the front and give the commander orders to hold, hold, hold, hold, hold, retreat...you may well not even lose the cheap indie commander.