nostr: compress secp256k1 imports

Author: OverOrion

crates/nostr/src/event/unsigned.rs

@@ -9,8 +9,7 @@ use alloc::{
     vec::Vec,
 };
 
-use secp256k1::schnorr::Signature;
-use secp256k1::{Message, XOnlyPublicKey};
+use secp256k1::{schnorr::Signature, XOnlyPublicKey};
 use serde::{Deserialize, Serialize};
 
 #[cfg(feature = "std")]