I love the narrator.

But as many have pointed out, OP is asking for a mute option. His title was a little aggressive which made it sound like he wanted to "remove" or "kill" the narrator, but I have 0 issue with there being the option to mute.

Being that I've played D&D for well over a decade, having someone commentate as my DM was highly immersive for me. I felt like I was playing D&D and it was fun!

But I completely understand that not being for everyone and considering everyone DM's differently, I'm sure that for other D&D players, the narrator does the opposite for them.