Fix more linter warnings

src/groups/calls/commands.rs

@@ -599,8 +599,7 @@ impl Command<State, Extras> for MaskCommand {
 
         if let Some(channel) = channel
             && let Some(call_id) = channel.call_id
-        {
+            && let Some(mut participant) = Participant::get_for_user_and_channel_in_call(
-            if let Some(mut participant) = Participant::get_for_user_and_channel_in_call(
                 ctx.extras.user.id,
                 ctx.event.channel_id.get(),
                 call_id,
@@ -621,7 +620,6 @@ impl Command<State, Extras> for MaskCommand {
                 );
             }
         }
-        }
 
         ctx.send().content(mask_message).await?;
 

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();