remove unneeded flag for annotations

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1767783004

TBR=halcanary

Review URL: https://codereview.chromium.org/1767783004
diff --git a/include/core/SkAnnotation.h b/include/core/SkAnnotation.h
index 2ea66d3..35cc2b5 100644
--- a/include/core/SkAnnotation.h
+++ b/include/core/SkAnnotation.h
@@ -1,4 +1,3 @@
-
 /*
  * Copyright 2012 Google Inc.
  *
@@ -11,9 +10,6 @@
 
 #include "SkTypes.h"
 
-// for chrome in PrintContextTest.cpp
-#define SK_SUPPORT_NEW_ANNOTATION_CANVAS_VIRTUAL
-
 class SkData;
 struct SkPoint;
 struct SkRect;