[TD-3963]fix alter vgroup rsp handle

src/mnode/src/mnodeVgroup.c

@@ -1044,15 +1044,11 @@ static void mnodeProcessAlterVnodeRsp(SRpcMsg *rpcMsg) {
          mnodeMsg->rpcMsg.handle, rpcMsg->ahandle);
 
   if (mnodeMsg->received != mnodeMsg->expected) return;
-  uint8_t msgType = mnodeMsg->rpcMsg.msgType;
-  if (msgType == TSDB_MSG_TYPE_CM_ALTER_DB || msgType == TSDB_MSG_TYPE_CM_CREATE_TP || msgType == TSDB_MSG_TYPE_CM_ALTER_TP) {
+
   int32_t code = mnodeInsertAlterDbRow(pVgroup->pDb, mnodeMsg);
   if (code != TSDB_CODE_SUCCESS && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
     dnodeSendRpcMWriteRsp(mnodeMsg, code);
   }
-  } else {
-    dnodeSendRpcMWriteRsp(mnodeMsg, TSDB_CODE_SUCCESS);
-  }
 }
 
 static void mnodeProcessCreateVnodeRsp(SRpcMsg *rpcMsg) {