Please do not do that, because this game will loose a lot if you do so.
I know that shields regenerate and makes fights longer, and nanobots used to make it last longer too
but there is a way to disable that .. It's called "Elite PVP" so ask your opponent just what most of us do, and if you both agreed that you won't use nanobots, then enjoy
but removing it completely from caps or disable the generation of shields for snubs is not a good idea from my prospective. Cheers