Update MSRTSS vulkan struct to final version The public version of VK_EXT_multisampled_render_to_single_sampled released in the 1.3.219 header does not include resolve modes in the VkMultisampledRenderToSingleSampledInfoEXT struct. Remove them to unblock the Chromium auto-roller. Bug: None Change-Id: I9d185a486227edfd3276ccb0df7063ca5101797b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3739583 Reviewed-by: Ian Elliott <ianelliott@google.com> Commit-Queue: Ian Elliott <ianelliott@google.com>