chore: remove unused clock and mutex helpers

src/util.rs

@@ -3,20 +3,10 @@
 // SPDX-License-Identifier: MPL-2.0
 
 use anyhow::anyhow;
-use std::sync::{Arc, Mutex, MutexGuard, RwLock, RwLockReadGuard, RwLockWriteGuard};
+use std::sync::{Arc, RwLock, RwLockReadGuard, RwLockWriteGuard};
 
 pub type ArcRwLock<T> = Arc<RwLock<T>>;
 
-pub trait MutexExt<T> {
-    fn lock_anyhow(&self) -> anyhow::Result<MutexGuard<'_, T>>;
-}
-
-impl<T> MutexExt<T> for Mutex<T> {
-    fn lock_anyhow(&self) -> anyhow::Result<MutexGuard<'_, T>> {
-        self.lock().map_err(|e| anyhow!("mutex poisoned: {e}"))
-    }
-}
-
 pub trait RwLockExt<T> {
     fn read_anyhow(&self) -> anyhow::Result<RwLockReadGuard<'_, T>>;
     fn write_anyhow(&self) -> anyhow::Result<RwLockWriteGuard<'_, T>>;