D3D11: Minor Optimization to DrawCallNeedsTranslation Remove IsStreamingIndexData from DrawCallNeedsTranslation since IsStreamingIndexData is only needed for drawElementsIndirect for fast path. This change gives about a 4% improvement on the drawElements benchmark for the D3D11 backend with the null driver. BUG=angleproject:1155 Change-Id: Ife2a9748f6b6fe9bc1f3a67c96672ab941a89d44 Reviewed-on: https://chromium-review.googlesource.com/717946 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>