1 files changed, 0 insertions, 32 deletions
diff --git a/syncs/locked.go b/syncs/locked.go
deleted file mode 100644
index d2048665d..000000000
--- a/syncs/locked.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) Tailscale Inc & AUTHORS
-// SPDX-License-Identifier: BSD-3-Clause
-
-package syncs
-
-import (
-	"sync"
-)
-
-// AssertLocked panics if m is not locked.
-func AssertLocked(m *sync.Mutex) {
-	if m.TryLock() {
-		m.Unlock()
-		panic("mutex is not locked")
-	}
-}
-
-// AssertRLocked panics if rw is not locked for reading or writing.
-func AssertRLocked(rw *sync.RWMutex) {
-	if rw.TryLock() {
-		rw.Unlock()
-		panic("mutex is not locked")
-	}
-}
-
-// AssertWLocked panics if rw is not locked for writing.
-func AssertWLocked(rw *sync.RWMutex) {
-	if rw.TryRLock() {
-		rw.RUnlock()
-		panic("mutex is not rlocked")
-	}
-}