remove unncessary comment

.gitignore

@@ -54,5 +54,4 @@ lib/
 
 android/gradle
 android/gradlew
-android/gradlew.bat
-
+android/gradlew.bat

src/WebViewShared.ts

@@ -1,15 +1,3 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @format
- * @typescript
- */
-
-'use strict';
-
 const escapeStringRegexp = require('escape-string-regexp');
 
 const WebViewShared = {