Revert of move annotations to canvas virtual

src/utils/SkNWayCanvas.cpp

Index: src/utils/SkNWayCanvas.cpp
diff --git a/src/utils/SkNWayCanvas.cpp b/src/utils/SkNWayCanvas.cpp
index fd5fa82aa5e0ea2d19d37bfcd135ef7801796604..e3b1e019b67874fb5b5393156644cc82d6c39949 100644
--- a/src/utils/SkNWayCanvas.cpp
+++ b/src/utils/SkNWayCanvas.cpp
@@ -292,13 +292,6 @@
     }
 }
 
-void SkNWayCanvas::onDrawAnnotation(const SkRect& rect, const char key[], SkData* data) {
-    Iter iter(fList);
-    while (iter.next()) {
-        iter->drawAnnotation(rect, key, data);
-    }
-}
-
 #ifdef SK_SUPPORT_LEGACY_DRAWFILTER
 SkDrawFilter* SkNWayCanvas::setDrawFilter(SkDrawFilter* filter) {
     Iter iter(fList);