Remove no required packages from imports

lib/screens/wallet_view.dart

-import 'dart:ui';
 import 'package:flutter/services.dart';
 import 'package:gecko/globals.dart';
 import 'package:flutter/material.dart';

pubspec.yaml

@@ -5,7 +5,7 @@ description: Pay with G1.
 # pub.dev using `pub publish`. This is preferred for private packages.
 publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 
-version: 0.0.3+13
+version: 0.0.3+14
 
 environment:
   sdk: ">=2.7.0 <3.0.0"