Remove code comments

src/bot/modules/mod.rs

@@ -1,14 +1,8 @@
-//! The registry of feature modules. Add a feature by creating a file here that
-//! implements [`super::module::Module`] and listing its constructor in [`all`].
-
 pub mod builtins;
 pub mod dice;
 
 use super::module::Module;
 
-/// Construct the default set of modules, in priority order (earlier modules win
-/// command-name collisions). Each network's [`super::Bot`] gets its own fresh
-/// set, so stateful modules keep independent per-network state.
 pub fn all() -> Vec<Box<dyn Module>> {
     vec![
         Box::new(builtins::Builtins),