Vulkan: Remove Host->device availability barrier. vkQueueSubmit already performs this operation, so this barrier was unnecessary. The only place this is necessary is when the GPU is expected to receive updates from the CPU post-submit. ContextVk::synchronizeCpuGpuTime is the only such use-case in ANGLE. Bug: angleproject:4897 Change-Id: I7297fbd65d3faabd949dddb6bcaa181053a83193 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2372631 Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>