CMake (without or without Visual Studio 2019) should be used instead
for the Vulkan build.

Bug: b/139189696
Change-Id: Ib87e34e2a210944446b8ea7bd57504acc4bc98d7
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/37068
Presubmit-Ready: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>