chore: Clippy fixes

src/service/oauth/mod.rs

@@ -7,7 +7,7 @@ use std::{
 use base64::Engine;
 use conduwuit::{Result, utils::hash::sha256};
 use database::{Deserialized, Json, Map};
-use ruma::{DeviceId, OwnedUserId, UserId};
+use ruma::DeviceId;
 
 use crate::{Dep, config, oauth::client_metadata::ClientMetadata};
 
@@ -36,6 +36,7 @@ pub enum OAuthTicket {
 impl OAuthTicket {
 	const MAX_AGE: Duration = Duration::from_mins(10);
 
+	#[must_use]
 	pub fn ticket_issue_path(&self) -> &'static str {
 		match self {
 			| Self::CrossSigningReset => "/account/cross_signing_reset",

src/service/uiaa/mod.rs

@@ -83,8 +83,8 @@ enum UiaaSessionMetadata {
 impl UiaaSessionMetadata {
 	fn into_identity(self) -> Identity {
 		match self {
-			| UiaaSessionMetadata::Legacy { identity } => identity,
-			| UiaaSessionMetadata::OAuth { localpart, .. } =>
+			| Self::Legacy { identity } => identity,
+			| Self::OAuth { localpart, .. } =>
 				assign!(Identity::default(), { localpart: Some(localpart) }),
 		}
 	}
@@ -98,10 +98,12 @@ pub struct UiaaInitiator<'a> {
 }
 
 impl<'a> UiaaInitiator<'a> {
+	#[must_use]
 	pub fn new(user_id: &'a UserId, device_id: Option<&'a DeviceId>) -> Self {
 		Self { user_id, device_id, oauth_ticket: None }
 	}
 
+	#[must_use]
 	pub fn with_oauth_ticket(
 		user_id: &'a UserId,
 		device_id: Option<&'a DeviceId>,