Remove use strict

extensions/vscode-web-playground/src/memfs.ts

@@ -3,7 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-'use strict';
 import {
 	CancellationToken,
 	Disposable,
@@ -124,8 +123,6 @@ export class MemFS implements FileSystemProvider, FileSearchProvider, TextSearch
 		this.writeFile(Uri.parse(`memfs:/sample-folder/xyz/UPPER.txt`), textEncoder.encode('UPPER'), { create: true, overwrite: true });
 		this.writeFile(Uri.parse(`memfs:/sample-folder/xyz/upper.txt`), textEncoder.encode('upper'), { create: true, overwrite: true });
 		this.writeFile(Uri.parse(`memfs:/sample-folder/xyz/def/foo.md`), textEncoder.encode('*MemFS*'), { create: true, overwrite: true });
-
-
 	}
 
 	root = new Directory(Uri.parse('memfs:/'), '');