onDrawImageNine is no longer used

nine-patch draws now route through onDrawImageLattice, and canvas no
longer ever calls onDrawImageNine.

Test: make

Change-Id: Ie1d5b0c72690a4986e97efa1feeb736ef704a079
diff --git a/libs/hwui/tests/common/CallCountingCanvas.h b/libs/hwui/tests/common/CallCountingCanvas.h
index 594afd0..40b5747 100644
--- a/libs/hwui/tests/common/CallCountingCanvas.h
+++ b/libs/hwui/tests/common/CallCountingCanvas.h
@@ -119,12 +119,6 @@
         drawImageRectCount++;
     }
 
-    int drawImageNineCount = 0;
-    void onDrawImageNine(const SkImage* image, const SkIRect& center, const SkRect& dst,
-                         const SkPaint* paint) override {
-        drawImageNineCount++;
-    }
-
     int drawImageLatticeCount = 0;
     void onDrawImageLattice(const SkImage* image, const SkCanvas::Lattice& lattice,
                             const SkRect& dst, const SkPaint* paint) override {
@@ -171,4 +165,4 @@
 
 } /* namespace test */
 } /* namespace uirenderer */
-} /* namespace android */
\ No newline at end of file
+} /* namespace android */