Alright, I know this going to be one of the more bizarre questions that's been asked on this forum but here goes.

I have a ~~Torque~~ "cadence sensing" motor e-bike. I basically barely need to pedal to hit pretty solid speeds (~20 mph). It doesn't bother me at all to be physically "disconnected" from the manual operation of the bike. I happily use it as a glorified electric moped.

So, the shifter... it just takes up space on my handlebar. I don't need it. I also don't need gearing at all, because I literally just leave my bike in 1st gear (of 7), and operate it easily. Since I don't need to exert myself at all, and since the power of my pedaling is almost entirely a non-factor, I never need to shift to tackle any hill, etc.

The question then is: Can I just remove it and simplify my bike? Can I remove the shifter and remove all the gears (the cassette?) and just leave it a simple, gearless bike? Is this a terrible idea? It is very difficult to do? I'd be willing to hire a pro to do it.