fix(authenticator): fixes configure call in custom auth test and removes redundant test (#1878)

Author: haverchuck

packages/auth/amplify_auth_cognito/example/integration_test/custom_auth_passwordless_test.dart

@@ -36,12 +36,7 @@ void main() {
       });
 
       setUpAll(() async {
-        await configureAuth(
-          customAuth: true,
-          additionalPlugins: [
-            AmplifyAPI(),
-          ],
-        );
+        await configureAuth();
         // create new user for each test
         username = generateUsername();
         password = generatePassword();
@@ -54,30 +49,6 @@ void main() {
         );
       });
 
-      testWidgets(
-        'Unconfirmed user sign in throws UserNotConfirmedException (even when password not verified)',
-        (WidgetTester tester) async {
-          var unconfirmedUsername = '${generateUsername()}unconfirmedUSer';
-          await Amplify.Auth.signUp(
-            username: unconfirmedUsername,
-            password: password,
-            options: CognitoSignUpOptions(
-              userAttributes: {
-                CognitoUserAttributeKey.email: '[email protected]',
-                CognitoUserAttributeKey.phoneNumber: '+15555555555',
-              },
-            ),
-          );
-
-          expect(
-            Amplify.Auth.signIn(username: unconfirmedUsername, password: null),
-            throwsA(
-              isA<UserNotConfirmedException>(),
-            ),
-          );
-        },
-      );
-
       testWidgets(
         'signIn should return data from the auth challenge lambda',
         (WidgetTester tester) async {