Breaks windows build.

This reverts commit 36411219.

Change-Id: I89286d25ed0e362f16e981d3c4d39a4661ee02c2
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/27329
Presubmit-Ready: Ben Clayton <bclayton@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Tested-by: Ben Clayton <bclayton@google.com>