refactor: remove unused code

include/libs/stream/tstream.h

@@ -538,7 +538,7 @@ typedef struct SStreamMeta {
 SStreamMeta* streamMetaOpen(const char* path, void* ahandle, FTaskExpand expandFunc);
 void         streamMetaClose(SStreamMeta* streamMeta);
 
-int32_t      streamMetaAddTask(SStreamMeta* pMeta, SStreamTask* pTask);
+// int32_t      streamMetaAddTask(SStreamMeta* pMeta, SStreamTask* pTask);
 int32_t      streamMetaAddSerializedTask(SStreamMeta* pMeta, int64_t startVer, char* msg, int32_t msgLen);
 int32_t      streamMetaRemoveTask(SStreamMeta* pMeta, int32_t taskId);
 SStreamTask* streamMetaGetTask(SStreamMeta* pMeta, int32_t taskId);

source/dnode/mnode/impl/src/mndScheduler.c

@@ -239,6 +239,7 @@ int32_t mndAddShuffleSinkTasksToStream(SMnode* pMnode, SStreamObj* pStream) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       return -1;
     }
+    pTask->fillHistory = pStream->fillHistory;
     mndAddTaskToTaskSet(tasks, pTask);
 
     pTask->nodeId = pVgroup->vgId;
@@ -270,6 +271,7 @@ int32_t mndAddFixedSinkTaskToStream(SMnode* pMnode, SStreamObj* pStream) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return -1;
   }
+  pTask->fillHistory = pStream->fillHistory;
   mndAddTaskToTaskSet(tasks, pTask);
 
   ASSERT(pStream->fixedSinkVg.vgId == pStream->fixedSinkVgId);
@@ -356,6 +358,7 @@ int32_t mndScheduleStream(SMnode* pMnode, SStreamObj* pStream) {
         qDestroyQueryPlan(pPlan);
         return -1;
       }
+      pInnerTask->fillHistory = pStream->fillHistory;
       mndAddTaskToTaskSet(taskInnerLevel, pInnerTask);
 
       pInnerTask->childEpInfo = taosArrayInit(0, sizeof(void*));

source/libs/stream/src/streamMeta.c

@@ -127,6 +127,7 @@ FAIL:
   return -1;
 }
 
+#if 0
 int32_t streamMetaAddTask(SStreamMeta* pMeta, SStreamTask* pTask) {
   void* buf = NULL;
   if (pMeta->expandFunc(pMeta->ahandle, pTask) < 0) {
@@ -156,6 +157,7 @@ int32_t streamMetaAddTask(SStreamMeta* pMeta, SStreamTask* pTask) {
 
   return 0;
 }
+#endif
 
 SStreamTask* streamMetaGetTask(SStreamMeta* pMeta, int32_t taskId) {
   SStreamTask** ppTask = (SStreamTask**)taosHashGet(pMeta->pTasks, &taskId, sizeof(int32_t));