Refactor setting an SkPaint onto a hwui Layer.

This CL removes the unecessary JNI call to set the colorFilter on
a layer.

Change-Id: I9e088f888938d4315745aa618334bfdb9e61343a
diff --git a/libs/hwui/DeferredLayerUpdater.h b/libs/hwui/DeferredLayerUpdater.h
index 0350eef..2735b9e 100644
--- a/libs/hwui/DeferredLayerUpdater.h
+++ b/libs/hwui/DeferredLayerUpdater.h
@@ -73,11 +73,7 @@
     ANDROID_API void setDisplayList(DisplayList* displayList,
                 int left, int top, int right, int bottom);
 
-    ANDROID_API void setPaint(const SkPaint* paint) {
-        OpenGLRenderer::getAlphaAndModeDirect(paint, &mAlpha, &mMode);
-    }
-
-    ANDROID_API void setColorFilter(SkColorFilter* colorFilter);
+    ANDROID_API void setPaint(const SkPaint* paint);
 
     ANDROID_API bool apply();
     ANDROID_API void applyDeferred(DeferredLayerUpdater* deferredApply);