Removed forgotten comment line in sql_select.cc.

sql/sql_select.cc:
  Forgot to remove commented line in previous commit.

sql/sql_select.cc

@@ -12337,7 +12337,6 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
     Local SP variables may be int but are expressions, not positions.
     (And they can't be used before fix_fields is called for them).
   */
-  //  if (order_item->type() == Item::INT_ITEM && !order_item->is_splocal())
   if (order_item->type() == Item::INT_ITEM && order_item->basic_const_item())
   {						/* Order by position */
     uint count= (uint) order_item->val_int();