tests: re-enable all layers for validation test
diff --git a/tests/layer_validation_tests.cpp b/tests/layer_validation_tests.cpp
index 1cec7b9..22ced91 100644
--- a/tests/layer_validation_tests.cpp
+++ b/tests/layer_validation_tests.cpp
@@ -153,13 +153,13 @@
 
         instance_extension_names.push_back(DEBUG_REPORT_EXTENSION_NAME);
         instance_extension_names.push_back("MemTracker");
-//        instance_extension_names.push_back("DrawState");
-//        instance_extension_names.push_back("ObjectTracker");
-//        instance_extension_names.push_back("Threading");
+        instance_extension_names.push_back("DrawState");
+        instance_extension_names.push_back("ObjectTracker");
+        instance_extension_names.push_back("Threading");
 
         device_extension_names.push_back("MemTracker");
-//        device_extension_names.push_back("ObjectTracker");
-//        device_extension_names.push_back("Threading");
+        device_extension_names.push_back("ObjectTracker");
+        device_extension_names.push_back("Threading");
 
         // Force layer output level to be >= WARNING so that we catch those messages but ignore others
         setLayerOptionEnum("MemTrackerReportLevel",    "VK_DBG_LAYER_LEVEL_WARNING");