diff --git a/example/packages/buzz_ui/lib/buzz_ui.dart b/example/packages/buzz_ui/lib/buzz_ui.dart
index f9b7ddb..3248ccc 100644
--- a/example/packages/buzz_ui/lib/buzz_ui.dart
+++ b/example/packages/buzz_ui/lib/buzz_ui.dart
@@ -1,7 +1 @@
 library buzz_ui;
-
-/// A Calculator.
-class Calculator {
-  /// Returns [value] plus 1.
-  int addOne(int value) => value + 1;
-}
diff --git a/example/packages/buzz_ui/test/buzz_ui_test.dart b/example/packages/buzz_ui/test/buzz_ui_test.dart
deleted file mode 100644
index e83e401..0000000
--- a/example/packages/buzz_ui/test/buzz_ui_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-
-import 'package:buzz_ui/buzz_ui.dart';
-
-void main() {
-  test('adds one to input values', () {
-    final calculator = Calculator();
-    expect(calculator.addOne(2), 3);
-    expect(calculator.addOne(-7), -6);
-    expect(calculator.addOne(0), 1);
-  });
-}