Revert of Mojo C++ bindings: support sync methods - part 2

mojo/public/cpp/bindings/lib/binding_state.h

Index: mojo/public/cpp/bindings/lib/binding_state.h
diff --git a/mojo/public/cpp/bindings/lib/binding_state.h b/mojo/public/cpp/bindings/lib/binding_state.h
index 6483d94d283c665d316c06f733001f75dbbf859d..3d025fbd5740509997fcacc652ca5ef01cf546d0 100644
--- a/mojo/public/cpp/bindings/lib/binding_state.h
+++ b/mojo/public/cpp/bindings/lib/binding_state.h
@@ -56,8 +56,8 @@
     filters.Append<internal::MessageHeaderValidator>();
     filters.Append<typename Interface::RequestValidator_>();
 
-    router_ = new internal::Router(std::move(handle), std::move(filters),
-                                   Interface::HasSyncMethods_, waiter);
+    router_ =
+        new internal::Router(std::move(handle), std::move(filters), waiter);
     router_->set_incoming_receiver(&stub_);
     router_->set_connection_error_handler(
         [this]() { connection_error_handler_.Run(); });