Revert "Merge from vscode merge-base (#22769)" (#22779)

This reverts commit 6bd0a17d3c.

build/azure-pipelines/common/createAsset.ts

@@ -3,6 +3,8 @@
  *  Licensed under the Source EULA. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+'use strict';
+
 import * as fs from 'fs';
 import { Readable } from 'stream';
 import * as crypto from 'crypto';