We already include the equivalent System/Types.hpp here. This was the
sole remaining bit of include crosstalk between the GLES and VK worlds.

Bug: b/145318391
Change-Id: I21a1845ac7d5d2d99260c83723233f938240f966
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/38769Reviewed-by: Ben Clayton <bclayton@google.com>
Tested-by: Chris Forbes <chrisforbes@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>