Vulkan: Don't present on surface destruction. The the user hasn't called SwapBuffers explicitly, we should not write to the window surface. This is especially a problem when the native window has already been destroyed. BUG=angleproject:2464 Change-Id: Ib4289de471ba2ad10e5cc21a8c2af946642f138c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1586355 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>