Fix generated main using now-removed panic handler

src/command.rs

@@ -521,8 +521,6 @@ romfs_dir = "romfs"
 const CUSTOM_MAIN_RS: &str = r#"use ctru::prelude::*;
 
 fn main() {
-    ctru::use_panic_handler();
-
     let apt = Apt::new().unwrap();
     let mut hid = Hid::new().unwrap();
     let gfx = Gfx::new().unwrap();