tests: Fix InvalidMemoryAliasing OT error

Change-Id: I4528ae3be385575c437f8c89551acbf196e67de8
diff --git a/tests/layer_validation_tests.cpp b/tests/layer_validation_tests.cpp
index dcf50b0..923f329 100644
--- a/tests/layer_validation_tests.cpp
+++ b/tests/layer_validation_tests.cpp
@@ -1567,6 +1567,7 @@
     if (!pass) {
         vkDestroyBuffer(m_device->device(), buffer, NULL);
         vkDestroyImage(m_device->device(), image, NULL);
+        vkDestroyImage(m_device->device(), image2, NULL);
         return;
     }
     err = vkAllocateMemory(m_device->device(), &alloc_info, NULL, &mem);