This warning was hit almost 2000 times and was
causing a lot of noise in the output.

Change-Id: I53f80de3eeebc9f70d780d3d7bc1e374582ffb10
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/32289Tested-by: Alexis Hétu <sugoi@google.com>
Presubmit-Ready: Alexis Hétu <sugoi@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>