What bike are you working on?
What purpose does removing the lighting coil serve? It might save a few ounces on wire, but it doesn't add any extra stress on the electrical system and you can simply leave it disconnected if you don't want to run lights.
On my CB125S, when you switch the lights on, the lighting coil is physically connected to the electrical system before the regulator/rectifier so more power is available to run the lights.
You can simply wire the coils together and not hook up any actual lights if you need the extra power for something else. It won't hurt anything. Or skip this step and not worry about hooking up lights, like you've planned. Make sure to get a regulator/rectifier for your electrical system. Ones from a scooter are cheap and can be more than enough for a small bike. This is what I did to "convert" my 125 to 12V.
Do not unwind anything on your stator/magneto unless you plan in rewinding it.