Debub the Unbuntu builds

images/linux/scripts/installers/1604/powershellcore.sh

@@ -8,6 +8,7 @@
 source $HELPER_SCRIPTS/document.sh
 
 LSB_RELEASE=$(lsb_release -rs)
+curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list > /etc/apt/sources.list.d/microsoft-prod.list
 
 # Install Powershell
 apt-get install -y powershell

images/linux/scripts/installers/docker-moby.sh

@@ -15,10 +15,6 @@ if ! IsInstalled $docker_package; then
     echo "Docker ($docker_package) was not found. Installing..."
     apt-get remove -y moby-engine moby-cli
     apt-get update
-    apt-get install -y apt-transport-https ca-certificates curl software-properties-common
-    curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add -
-    curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list > /etc/apt/sources.list.d/microsoft-prod.list
-    apt-get update
     apt-get install -y moby-engine moby-cli
 else
     echo "Docker ($docker_package) is already installed"

images/linux/scripts/installers/docker.sh

@@ -12,8 +12,6 @@ DOCKER_PACKAGE=moby
 
 apt-get remove -y moby-engine mobi-cli
 apt-get update
-apt-get install -y apt-transport-https ca-certificates curl software-properties-common
-apt-get update
 apt-get install -y moby-engine mobi-cli
 
 docker pull node:10