Fixed MSVC compiler warning

Author: TheMostDiligent

Graphics/GraphicsEngineVulkan/src/VulkanUtilities/VulkanInstance.cpp

@@ -707,8 +707,17 @@ VkPhysicalDevice VulkanInstance::SelectPhysicalDeviceForOpenXR(const CreateInfo:
 
     return vkDevice;
 #else
+#    ifdef _MSC_VER
+#        pragma warning(push)
+#        pragma warning(disable : 4702) // unreachable code
+#    endif
+
     LOG_ERROR_AND_THROW("OpenXR is not supported. Use DILIGENT_USE_OPENXR CMake option to enable it.");
     return VK_NULL_HANDLE;
+
+#    ifdef _MSC_VER
+#        pragma warning(pop)
+#    endif
 #endif
 }