libvulkan: Disable accidentally-enabled verbose logging

Change-Id: Iab25e06607b173d9ea04fca79b0e8e8386dd0f0d
(cherry picked from commit 4b31dcd677ee868d99ef07890af425e10fd5bf0c)
diff --git a/vulkan/libvulkan/layers_extensions.cpp b/vulkan/libvulkan/layers_extensions.cpp
index 7b9b4f1..2c1b182 100644
--- a/vulkan/libvulkan/layers_extensions.cpp
+++ b/vulkan/libvulkan/layers_extensions.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#define LOG_NDEBUG 0
+// #define LOG_NDEBUG 0
 
 #include "loader.h"
 #include <alloca.h>