Remove SkImageFilter::getInputResult(), since its return value is not

include/core/SkImageFilter.h

Index: include/core/SkImageFilter.h
diff --git a/include/core/SkImageFilter.h b/include/core/SkImageFilter.h
index 7eefaf5c16d9d9c4d2b0960fed6220f8ea827b82..78e321a7b5693307224cfee271470098ba5efbb2 100644
--- a/include/core/SkImageFilter.h
+++ b/include/core/SkImageFilter.h
@@ -159,11 +159,6 @@ protected:
     // Default impl copies src into dst and returns true
     virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*);
 
-    // Return the result of processing the given input, or the source bitmap
-    // if we have no connected input at that index.
-    SkBitmap getInputResult(int index, Proxy*, const SkBitmap& src, const SkMatrix&,
-                            SkIPoint*);
-
 private:
     typedef SkFlattenable INHERITED;
     int fInputCount;