message: net, refactor: Drop tautological local variables
diff: @@ -4327,22 +4327,18 @@ bool PeerManagerImpl::ProcessMessages(CNode* pfrom, std::atomic<bool>& interrupt
  }
  msg.SetVersion(pfrom->GetCommonVersion());
  - const std::string& msg_type = msg.m_type;
  -
  - // Message size
  - unsigned int nMessageSize = msg.m_message_size;
  try {
  - ProcessMessage(*pfrom, msg_type, msg.m_recv, msg.m_time, interruptMsgProc);
  + ProcessMessage(*pfrom, msg.m_type, msg.m_recv, msg.m_time, interruptMsgProc);
  if (interruptMsgProc) return false;
  {
  LOCK(peer->m_getdata_requests_mutex);
  if (!peer->m_getdata_requests.empty()) fMoreWork = true;
  }
  } catch (const std::exception& e) {
  - LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' (%s) caught\n", __func__, SanitizeString(msg_type), nMessageSize, e.what(), typeid(e).name());
  + LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' (%s) caught\n", __func__, SanitizeString(msg.m_type), msg.m_message_size, e.what(), typeid(e).name());
  } catch (...) {
  - LogPrint(BCLog::NET, "%s(%s, %u bytes): Unknown exception caught\n", __func__, SanitizeString(msg_type), nMessageSize);
  + LogPrint(BCLog::NET, "%s(%s, %u bytes): Unknown exception caught\n", __func__, SanitizeString(msg.m_type), msg.m_message_size);
  }
  return fMoreWork;
  