If you guys check out some of the guitars Karl Sanders from Nile plays you’ll see what I mean. He uses a volume pedal instead of a volume knob. Some of his guitars don’t have volume or tone knobs or any switches. I like the clean look they have and he says it affects the tone as well.
With a suitable pedalboard that should be very doable, and yes, the less ”circuit” you have in the guitar the more output you will get. However, the tone might not be what you want. Pickups are usually voiced for guitars with a volume and a tone (which affect the sound), so removing them might make the pickup sound bad. I asked the manufacturer when I made my guitar, and that pickup (Pariah Pasadena White) has been voiced in a guitar that only has a a volume, so I planned the ”circuit” around it, accordingly.