Clear clippy warnings

src/utils.rs

@@ -190,10 +190,7 @@ pub async fn send(ctx: Context<'_>, message: &str, ping: bool, pin: bool) -> Res
         if pin {
             // No need to do anything on error,
             // it just means we don't have pin permissions
-            match sent_message.pin(&ctx.http).await {
-                Ok(_) => (),
-                Err(_) => (),
-            };
+            let _ = sent_message.pin(&ctx.http).await;
         }
         // announcements_count += 1;
     }
@@ -214,8 +211,8 @@ pub fn random_from_string(string: &str) -> char {
 
 pub fn get_so_diagram(kanji: char) -> String {
     format!(
-        "https://raw.githubusercontent.com/mistval/kanji_images/master/gifs/{}.gif",
-        format!("{:x}", kanji as i32)
+        "https://raw.githubusercontent.com/mistval/kanji_images/master/gifs/{:x}.gif",
+        kanji as i32
     )
 }