My logical brain knows its fine, but my irrational brain is back in high school electric shop watching the teacher set steel wool on fire with a 9V battery.
I’m totally confused as to why you would want to even remove the switch.
And all your splices have to be in accessible boxes. Absolutely no wires twisted together inside a wall.
Sounds to me like he broke the neutral wire through the switch and not the hot leg.
Sounds like another DIY person made some of his own modifications...I hate the idea of a dedicated, switch-less, line unless it’s also on its own breaker (or on a circuit that can be shut off anytime with no inconveniences)...odds are, it’s gonna need replacement sometime and