Cycles: Remove dead branch for Distant lamps, ls->t is always FLT_MAX here.
Cycles: Remove dead branch for Distant lamps, ls->t is always FLT_MAX here.

pyrochlore/cycles,tangent-opensource/coreBlackbird,pyrochlore/cycles,tangent-opensource/coreBlackbird,tangent-opensource/coreBlackbird,pyrochlore/cycles