[TD-2210] <fix>: use LWP tid. remove few darwin-related code.

src/client/inc/tsclient.h

@@ -334,7 +334,7 @@ typedef struct SSubqueryState {
 
 typedef struct SSqlObj {
   void            *signature;
-  pthread_t        owner;        // owner of sql object, by which it is executed
+  int64_t          owner;        // owner of sql object, by which it is executed
   STscObj         *pTscObj;
   int64_t          rpcRid;
   __async_cb_func_t  fp;

src/client/src/tscUtil.c

@@ -2578,11 +2578,7 @@ bool tscSetSqlOwner(SSqlObj* pSql) {
   SSqlRes* pRes = &pSql->res;
 
   // set the sql object owner
-#ifdef __APPLE__
-  pthread_t threadId = (pthread_t)taosGetSelfPthreadId();
-#else // __APPLE__
   int64_t threadId = taosGetSelfPthreadId();
-#endif // __APPLE__
   if (atomic_val_compare_exchange_64(&pSql->owner, 0, threadId) != 0) {
     pRes->code = TSDB_CODE_QRY_IN_EXEC;
     return false;