This fixes lint errors in the vulkan directory. This might be a little more controversial, but the reason that the lints were failing here was because of an include path problem that I think I solved.
The Vulkan surface extension as used here is meant for testing only.
Since this isn't used, remove it so we don't have to maintain it.
Also remove the attempt to locate all related Vulkan entry points.
Test:
pixelbook:build topaz, launch a spinning cube
This change basically moves the singaling of the surface acquire event into the gpu driver, eliminating the VkQueueWaitIdle on surface submission
This change depends on https://skia-review.googlesource.com/c/25641/ so do not submit until Flutter has rolled Skia past that point
This version does not recycle buffers. It is meant only as an initial solution,
and the proper buffer recycling logic has been broken out into a separate change
