Revert "[TD-12276]<fix>: elapsed nest query: Return a negative calculation result"

This reverts commit 2da0efdd.

src/client/src/tscSQLParser.c

@@ -9625,11 +9625,7 @@ static STableMeta* extractTempTableMetaFromSubquery(SQueryInfo* pUpstream) {
     meta->schema[n].type  = pField->field.type;
 
     SExprInfo* pExpr = pField->pExpr;
-    if (pExpr->base.colInfo.colId == PRIMARYKEY_TIMESTAMP_COL_INDEX) {
-      meta->schema[n].colId = PRIMARYKEY_TIMESTAMP_COL_INDEX;
-    } else {
-      meta->schema[n].colId = pExpr->base.resColId;
-    }
+    meta->schema[n].colId = pExpr->base.resColId;
     tstrncpy(meta->schema[n].name, pField->pExpr->base.aliasName, TSDB_COL_NAME_LEN);
     info->rowSize += meta->schema[n].bytes;