cleanup code

lib/pages/carton/cargo_table.dart

@@ -1,8 +1,6 @@
 import 'package:fcs/domain/entities/cargo_type.dart';
 import 'package:fcs/helpers/theme.dart';
 import 'package:fcs/pages/widgets/local_text.dart';
-import 'package:fcs/pages/widgets/my_data_table.dart';
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 class CargoTable extends StatefulWidget {
@@ -68,7 +66,7 @@ class _CargoTableState extends State<CargoTable> {
             c.name ?? "",
             style: textStyle,
           )),
-          DataCell(c.qty == null || c.qty == 0
+          DataCell(c.qty == 0
               ? Center(
                   child: Text(
                     "-",
@@ -82,8 +80,7 @@ class _CargoTableState extends State<CargoTable> {
                   ),
                 )),
           DataCell(
-            Text(c.weight == null ? "0" : c.weight.toStringAsFixed(2),
-                style: textStyle),
+            Text(c.weight.toStringAsFixed(2), style: textStyle),
           ),
         ],
       );