Add more shadow control knobs

Change-Id: I1ff500bf429029a97b681ced9df652f4ee9f1332
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 1f5389c..f3180f7 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -3287,10 +3287,8 @@
     if (mCaches.propertySpotShadowStrength > 0) {
         paint.setARGB(casterAlpha * mCaches.propertySpotShadowStrength, 0, 0, 0);
         VertexBuffer spotShadowVertexBuffer;
-        Vector3 lightPosScale(mCaches.propertyLightPosXScale,
-                mCaches.propertyLightPosYScale, mCaches.propertyLightPosZScale);
         VertexBufferMode vertexBufferMode = ShadowTessellator::tessellateSpotShadow(
-                isCasterOpaque, casterPolygon, casterVertexCount, lightPosScale,
+                isCasterOpaque, casterPolygon, casterVertexCount,
                 *currentTransform(), getWidth(), getHeight(), casterBounds, localClip,
                 spotShadowVertexBuffer);
         drawVertexBuffer(vertexBufferMode, spotShadowVertexBuffer, &paint);