Revert "Always enable lock level checks." DO NOT MERGE

This reverts commit ccf124800fe025be3ca05c28a60514909ca66a11.

(cherry picked from commit 27c590edf6c24107b6473e84e526c432bd081f6e)

Change-Id: I2be879dcd126fc8d043641bdfbf2f9b80a678d10
diff --git a/src/base/mutex.h b/src/base/mutex.h
index 24df572..b627559 100644
--- a/src/base/mutex.h
+++ b/src/base/mutex.h
@@ -53,7 +53,7 @@
 class ScopedContentionRecorder;
 class Thread;
 
-const bool kDebugLocking = true || kIsDebugBuild;
+const bool kDebugLocking = kIsDebugBuild;
 
 // Base class for all Mutex implementations
 class BaseMutex {