refactor: do some internal refactor.

source/dnode/mnode/impl/inc/mndScheduler.h

@@ -22,11 +22,8 @@
 extern "C" {
 #endif
 
-int32_t mndInitScheduler(SMnode* pMnode);
-void    mndCleanupScheduler(SMnode* pMnode);
 
 int32_t mndSchedInitSubEp(SMnode* pMnode, const SMqTopicObj* pTopic, SMqSubscribeObj* pSub);
-
 int32_t mndConvertRsmaTask(char** pDst, int32_t* pDstLen, const char* ast, int64_t uid, int8_t triggerType,
                            int64_t watermark, int64_t deleteMark);
 

source/dnode/mnode/impl/inc/mndStream.h

@@ -38,8 +38,6 @@ int32_t mndPersistStream(SMnode *pMnode, STrans *pTrans, SStreamObj *pStream);
 int32_t mndDropStreamTasks(SMnode *pMnode, STrans *pTrans, SStreamObj *pStream);
 int32_t mndPersistDropStreamLog(SMnode *pMnode, STrans *pTrans, SStreamObj *pStream);
 
-int32_t mndDropStreamByDb(SMnode *pMnode, STrans *pTrans, SDbObj *pDb);
-
 int32_t mndGetNumOfStreams(SMnode *pMnode, char *dbName, int32_t *pNumOfStreams);
 
 #ifdef __cplusplus