Drop /etc/update-motd.d/51-cloudguest from cloud images; this is not consistent with current Ubuntu Advantage product language. Any future customizations to update-motd for cloud images should be done via a package instead.

debian/changelog

@@ -1,3 +1,12 @@
+livecd-rootfs (2.208.17) UNRELEASED; urgency=medium
+
+  * Drop /etc/update-motd.d/51-cloudguest from cloud images; this is not
+    consistent with current Ubuntu Advantage product language.  Any future
+    customizations to update-motd for cloud images should be done via a
+    package instead.  LP: #1823776.
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Tue, 12 Mar 2019 11:39:34 -0700
+
 livecd-rootfs (2.208.16) trusty; urgency=medium
 
   * For omap and omap4, enable the universe component for u-boot-linaro-omap*

live-build/ubuntu-cpc/hooks/999-cpc-fixes.chroot

@@ -126,20 +126,6 @@ EOM
 [ ! -e "${rootd}/etc/update-motd.d" ] &&
    mkdir -p "${rootd}/etc/update-motd.d"
 
-## write a MOTD file advertising support for images
-cat > "${rootd}/etc/update-motd.d/51-cloudguest" << EOF
-#!/bin/sh
-#
-${CLOUD_IMG_STR}
-# This file is not managed by a package.  If you no longer want to
-# see this message you can safely remove the file.
-echo ""
-echo "  Get cloud support with Ubuntu Advantage Cloud Guest:"
-echo "    http://www.ubuntu.com/business/services/cloud"
-EOF
-
-chmod +x "${rootd}/etc/update-motd.d/51-cloudguest"
-
 # for quantal and newer, add /etc/overlayroot.local.conf
 # but do not overwrite anything that somehow got there
 if [ -f "${rootd}/etc/overlayroot.conf" ] &&