Revert "Always enable lock level checks."

This reverts commit ccf124800fe025be3ca05c28a60514909ca66a11.
diff --git a/runtime/base/mutex.h b/runtime/base/mutex.h
index 0e5445f..297a63d 100644
--- a/runtime/base/mutex.h
+++ b/runtime/base/mutex.h
@@ -47,7 +47,7 @@
 class ScopedContentionRecorder;
 class Thread;
 
-const bool kDebugLocking = true || kIsDebugBuild;
+const bool kDebugLocking = kIsDebugBuild;
 
 // Record Log contention information, dumpable via SIGQUIT.
 #ifdef ART_USE_FUTEXES