While debugging, I came across the piece of code in
OutputHLSL::OutputHLSL which is unnecessarily duplicated,
this change just fixes it.

Change-Id: I0549d58696417ccf651bacfa19f489b290d4ba6e
Reviewed-on: https://chromium-review.googlesource.com/259960Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>