Remove dead code for writing ICData entries.

runtime/vm/object.h

Index: runtime/vm/object.h
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index b219ab7c5cdc3cbaee33f1d3eb32ac751c4469fc..7af55854ba354d8e21e3865c153f57679452126c 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -2066,11 +2066,7 @@ class ICData : public Object {
                              GrowableArray<intptr_t>* second) const;
 
   void PrintToJSONArray(const JSONArray& jsarray,
-                        TokenPosition token_pos,
-                        bool is_static_call) const;
-  void PrintToJSONArrayNew(const JSONArray& jsarray,
-                           TokenPosition token_pos,
-                           bool is_static_call) const;
+                        TokenPosition token_pos) const;
 
   // Initialize the preallocated empty ICData entry arrays.
   static void InitOnce();