This closes a few more places where the asynchronous abstraction was
leaking through. We can no longer access VkQueues directly from
RendererVk.

Bug: b/172704839
Change-Id: Idc06ee73816147cf602f21723e75bc5ee842d3e0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2525145
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Tim Van Patten <timvp@google.com>