review: Fix peers::handler visibility

This only needs to be pub for fuzz tests

Author: julianknutsen

lightning/src/ln/peers/mod.rs

@@ -13,14 +13,18 @@
 //! Conduit enables message encryption and decryption, and automatically handles key rotation.
 
 mod chacha;
-pub mod handler;
 mod hkdf5869rfc;
 
 #[cfg(feature = "fuzztarget")]
 pub mod conduit;
 #[cfg(not(feature = "fuzztarget"))]
 mod conduit;
 
+#[cfg(feature = "fuzztarget")]
+pub mod handler;
+#[cfg(not(feature = "fuzztarget"))]
+mod handler;
+
 #[cfg(feature = "fuzztarget")]
 pub mod handshake;
 #[cfg(not(feature = "fuzztarget"))]