[flutter_plugin_android_lifecycle] remove placeholder dart file (#4413)

diff --git a/packages/flutter_plugin_android_lifecycle/CHANGELOG.md b/packages/flutter_plugin_android_lifecycle/CHANGELOG.md
index 7e567d8..27cca01 100644
--- a/packages/flutter_plugin_android_lifecycle/CHANGELOG.md
+++ b/packages/flutter_plugin_android_lifecycle/CHANGELOG.md
@@ -1,6 +1,7 @@
-## NEXT
+## 2.0.4
 
 * Updated Android lint settings.
+* Remove placeholder Dart file.
 
 ## 2.0.3
 
diff --git a/packages/flutter_plugin_android_lifecycle/lib/flutter_plugin_android_lifecycle.dart b/packages/flutter_plugin_android_lifecycle/lib/flutter_plugin_android_lifecycle.dart
deleted file mode 100644
index 340b068..0000000
--- a/packages/flutter_plugin_android_lifecycle/lib/flutter_plugin_android_lifecycle.dart
+++ /dev/null
@@ -1,6 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// The flutter_plugin_android_lifecycle plugin only provides a Java API
-// for use by Android plugins. This plugin has no Dart code.
diff --git a/packages/flutter_plugin_android_lifecycle/pubspec.yaml b/packages/flutter_plugin_android_lifecycle/pubspec.yaml
index 0fc128d..8535de1 100644
--- a/packages/flutter_plugin_android_lifecycle/pubspec.yaml
+++ b/packages/flutter_plugin_android_lifecycle/pubspec.yaml
@@ -2,7 +2,7 @@
 description: Flutter plugin for accessing an Android Lifecycle within other plugins.
 repository: https://github.com/flutter/plugins/tree/master/packages/flutter_plugin_android_lifecycle
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+flutter_plugin_android_lifecycle%22
-version: 2.0.3
+version: 2.0.4
 
 environment:
   sdk: ">=2.12.0 <3.0.0"