Revert of Continue learning for calls in optimized code when we have no type feedback.

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index ed4b065efad25123fe081ad40847db3b36213341..9d19b710fe9c5d274156b09edfeda24bd6dff360 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -2434,36 +2434,22 @@
   DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(
       HCallFunction, HValue*, int, CallFunctionFlags);
 
-  HValue* context() const { return first(); }
-  HValue* function() const { return second(); }
+  HValue* context() { return first(); }
+  HValue* function() { return second(); }
   CallFunctionFlags function_flags() const { return function_flags_; }
 
-  FeedbackVectorICSlot slot() const { return slot_; }
-  Handle<TypeFeedbackVector> feedback_vector() const {
-    return feedback_vector_;
-  }
-  bool HasVectorAndSlot() const { return !feedback_vector_.is_null(); }
-  void SetVectorAndSlot(Handle<TypeFeedbackVector> vector,
-                        FeedbackVectorICSlot slot) {
-    feedback_vector_ = vector;
-    slot_ = slot;
-  }
-
   DECLARE_CONCRETE_INSTRUCTION(CallFunction)
 
-  std::ostream& PrintDataTo(std::ostream& os) const OVERRIDE;  // NOLINT
-
   int argument_delta() const OVERRIDE { return -argument_count(); }
 
  private:
-  HCallFunction(HValue* context, HValue* function, int argument_count,
+  HCallFunction(HValue* context,
+                HValue* function,
+                int argument_count,
                 CallFunctionFlags flags = NO_CALL_FUNCTION_FLAGS)
-      : HBinaryCall(context, function, argument_count),
-        function_flags_(flags),
-        slot_(FeedbackVectorICSlot::Invalid()) {}
+      : HBinaryCall(context, function, argument_count), function_flags_(flags) {
+  }
   CallFunctionFlags function_flags_;
-  Handle<TypeFeedbackVector> feedback_vector_;
-  FeedbackVectorICSlot slot_;
 };