chore(Misc): make AzerothCore new api support

ItemMethods.h

@@ -756,12 +756,9 @@ namespace LuaItem
      */
     int SaveToDB(lua_State* /*L*/, Item* item)
     {
-#if defined TRINITY
+#if defined TRINITY || defined AZEROTHCORE
         CharacterDatabaseTransaction trans = CharacterDatabaseTransaction(nullptr);
         item->SaveToDB(trans);
-#elif defined AZEROTHCORE
-        SQLTransaction trans = SQLTransaction(NULL);
-        item->SaveToDB(trans);
 #else
         item->SaveToDB();
 #endif