Fix more linter warnings

src/groups/calls/commands.rs

@@ -599,27 +599,25 @@ impl Command<State, Extras> for MaskCommand {
 
         if let Some(channel) = channel
             && let Some(call_id) = channel.call_id
-        {
-            if let Some(mut participant) = Participant::get_for_user_and_channel_in_call(
+            && let Some(mut participant) = Participant::get_for_user_and_channel_in_call(
                 ctx.extras.user.id,
                 ctx.event.channel_id.get(),
                 call_id,
                 &ctx.rt.state.db,
             )
             .await?
-            {
-                participant.is_masked = ctx.extras.user.is_masked;
-                participant.upsert(&ctx.rt.state.db).await?;
+        {
+            participant.is_masked = ctx.extras.user.is_masked;
+            participant.upsert(&ctx.rt.state.db).await?;
 
-                if ctx.extras.user.is_masked {
-                    mask_message = format!(
-                        "🎭 Your mask {mask_verb} set to `on`. You're currently being displayed as **{} {}**. You can toggle your mask on or off using `{}mask on` and `{}mask off`.",
-                        get_mask_emoji(&participant.user_mask).expect("User's mask did not exist"),
-                        get_mask_display_name(&participant.user_mask),
-                        ctx.prefix,
-                        ctx.prefix
-                    );
-                }
+            if ctx.extras.user.is_masked {
+                mask_message = format!(
+                    "🎭 Your mask {mask_verb} set to `on`. You're currently being displayed as **{} {}**. You can toggle your mask on or off using `{}mask on` and `{}mask off`.",
+                    get_mask_emoji(&participant.user_mask).expect("User's mask did not exist"),
+                    get_mask_display_name(&participant.user_mask),
+                    ctx.prefix,
+                    ctx.prefix
+                );
             }
         }
 

src/utils.rs

@@ -111,9 +111,9 @@ pub fn u64_to_i64(u: u64) -> i64 {
 /// Returns:
 /// [`Option<(&str, &str)>`] - The splitted parts of the string, or [`None`] if no occurrences of
 /// `pattern` were found in `s`.
-pub fn split_at_nth_from_end<'a, 'b>(
+pub fn split_at_nth_from_end<'a>(
     s: &'a str,
-    pattern: &'b str,
+    pattern: &str,
     n: usize,
 ) -> Option<(&'a str, &'a str)> {
     let mut end = s.len();