bug-14538: Remove validation error codes

https://cvs.khronos.org/bugzilla/show_bug.cgi?id=14538
diff --git a/tests/test_common.h b/tests/test_common.h
index d17238c..1551653 100644
--- a/tests/test_common.h
+++ b/tests/test_common.h
@@ -26,15 +26,13 @@
     STR(VK_TIMEOUT);
     STR(VK_EVENT_SET);
     STR(VK_EVENT_RESET);
-    STR(VK_ERROR_UNKNOWN);
     STR(VK_ERROR_INITIALIZATION_FAILED);
     STR(VK_ERROR_OUT_OF_HOST_MEMORY);
     STR(VK_ERROR_OUT_OF_DEVICE_MEMORY);
     STR(VK_ERROR_DEVICE_LOST);
-    STR(VK_ERROR_INVALID_EXTENSION);
+    STR(VK_ERROR_EXTENSION_NOT_PRESENT);
+    STR(VK_ERROR_LAYER_NOT_PRESENT);
     STR(VK_ERROR_MEMORY_MAP_FAILED);
-    STR(VK_ERROR_MEMORY_UNMAP_FAILED);
-    STR(VK_ERROR_INCOMPATIBLE_DEVICE);
     STR(VK_ERROR_INCOMPATIBLE_DRIVER);
 #undef STR
     default: return "UNKNOWN_RESULT";