Remove printlns

card-functionality/src/main.rs

@@ -223,7 +223,6 @@ fn test_keygen(
         let fp = fp.as_bytes();
         assert_eq!(fp.len(), 20);
 
-        println!("fp {:?}", fp);
         Ok(fp.try_into().unwrap())
     };
 

openpgp-card/src/keys.rs

@@ -112,7 +112,7 @@ pub(crate) fn gen_key(
 
     let pubkey = tlv_to_pubkey(&tlv)?;
 
-    println!("public {:x?}", pubkey);
+    log::trace!("public {:x?}", pubkey);
 
     Ok(pubkey)
 }