don't send protocol discard message on fail

llarp/service/endpoint.cpp

@@ -912,25 +912,7 @@ namespace llarp
         RemoveConvoTag(frame.T);
         return true;
       }
-      if (!frame.AsyncDecryptAndVerify(EndpointLogic(), p, m_Identity, this))
-      {
-        // send discard
-        ProtocolFrame f;
-        f.R = 1;
-        f.T = frame.T;
-        f.F = p->intro.pathID;
-
-        if (!f.Sign(m_Identity))
-          return false;
-        {
-          LogWarn("invalidating convotag T=", frame.T);
-          util::Lock lock(m_state->m_SendQueueMutex);
-          m_state->m_SendQueue.emplace_back(
-              std::make_shared<const routing::PathTransferMessage>(f, frame.F), p);
-        }
-        return true;
-      }
-      return true;
+      return frame.AsyncDecryptAndVerify(EndpointLogic(), p, m_Identity, this);
     }
 
     void Endpoint::HandlePathDied(path::Path_ptr)