Merge from vscode 81d7885dc2e9dc617e1522697a2966bc4025a45d (#5949)

* Merge from vscode 81d7885dc2e9dc617e1522697a2966bc4025a45d

* Fix vs unit tests and hygiene issue

* Fix strict null check issue

remote/installDevPackagesAsRoot.sh

@@ -1,16 +0,0 @@
-#!/bin/bash
-set -ex
-
-# Install libraries and tools
-apt-get update
-apt-get install -y \
-	curl \
-	make \
-	gcc \
-	g++ \
-	python2.7 \
-	libx11-dev \
-	libxkbfile-dev \
-	libsecret-1-dev \
-	xz-utils
-rm -rf /var/lib/apt/lists/*