chore: Clippy fixes

src/service/oauth/grant.rs

@@ -1,9 +1,4 @@
-use std::{
-	collections::{BTreeSet, HashSet},
-	fmt::Debug,
-	hash::Hash,
-	mem::discriminant,
-};
+use std::{collections::BTreeSet, fmt::Debug, hash::Hash, mem::discriminant};
 
 use regex::Regex;
 use ruma::OwnedDeviceId;
@@ -127,6 +122,7 @@ pub enum TokenRequest {
 }
 
 impl TokenRequest {
+	#[must_use]
 	pub fn client_id(&self) -> &str {
 		match self {
 			| Self::AuthorizationCode { client_id, .. }

src/service/oauth/mod.rs

@@ -1,5 +1,5 @@
 use std::{
-	collections::{BTreeMap, BTreeSet, HashMap},
+	collections::{BTreeSet, HashMap},
 	sync::{Arc, Mutex},
 	time::{Duration, SystemTime},
 };
@@ -77,10 +77,10 @@ impl PendingCodeGrant {
 	const RANDOM_CODE_LENGTH: usize = 32;
 
 	#[must_use]
-	pub fn generate_code() -> String { utils::random_string(Self::RANDOM_CODE_LENGTH) }
+	pub(crate) fn generate_code() -> String { utils::random_string(Self::RANDOM_CODE_LENGTH) }
 
 	#[must_use]
-	pub fn is_valid_for(&self, client_id: &str) -> bool {
+	pub(crate) fn is_valid_for(&self, client_id: &str) -> bool {
 		let now = SystemTime::now();
 
 		self.expected_client_id == client_id
@@ -454,7 +454,7 @@ impl Service {
 				.remove(&session_info.current_refresh_token);
 			self.db
 				.userdeviceid_oauthsessioninfo
-				.del(&(user_id, device_id));
+				.del((user_id, device_id));
 			info!(?user_id, ?device_id, "Removed OAuth session");
 		}
 	}