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

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 54007c524a6cd376a357770eaeaaa28b6e04af8f..b59f5c79494117a109f487f0fc09baad83229167 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -9348,19 +9348,7 @@
       Push(graph()->GetConstantUndefined());
       CHECK_ALIVE(VisitExpressions(expr->arguments()));
       PushArgumentsFromEnvironment(argument_count);
-      HCallFunction* call_function =
-          New<HCallFunction>(function, argument_count);
-      call = call_function;
-      if (expr->is_uninitialized() && expr->HasCallFeedbackSlot()) {
-        // We've never seen this call before, so let's have Crankshaft learn
-        // through the type vector.
-        Handle<SharedFunctionInfo> current_shared =
-            function_state()->compilation_info()->shared_info();
-        Handle<TypeFeedbackVector> vector =
-            handle(current_shared->feedback_vector(), isolate());
-        FeedbackVectorICSlot slot = expr->CallFeedbackSlot();
-        call_function->SetVectorAndSlot(vector, slot);
-      }
+      call = New<HCallFunction>(function, argument_count);
     }
   }