Use ubuntu-cloud-minimal metapackage in minimized CPC images

Now that we have the cloud-minimal seed for minimized cloud
image builds, we should drop all the workarounds and hacks
we once needed when we were using the server seed. We can
directly use the new metapackage and get rid of the tasks and
other autoremoves, et al.

live-build/auto/config

@@ -1109,8 +1109,7 @@ case $PROJECT in
 		KERNEL_FLAVOURS=virtual
 
 		if [ "${SUBPROJECT:-}" = minimized ]; then
-			add_task install cloud-image
-			add_package install sudo lxd-installer
+			add_package install ubuntu-cloud-minimal
 		else
 			add_task install minimal standard cloud-image
 			add_package install ubuntu-minimal
@@ -1210,7 +1209,11 @@ case $PROJECT:${SUBPROJECT:-} in
 		BASE_SEED='wsl'
 		;;
 	ubuntu-cpc:*)
+		# we don't preseed any snaps in minimized images, so no need to set
+		# BASE_SEED in that case.
+		if [ "${SUBPROJECT:-}" != minimized ]; then
 			BASE_SEED='server'
+		fi
 		;;
 	ubuntu-server:live)
 		BASE_SEED='server'

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

@@ -91,37 +91,6 @@ if [ -L "${rootd}/boot/initrd.img" ] && [ ! -e "${rootd}/boot/initrd.img" ]; the
 	rm "${rootd}/boot/initrd.img"
 fi
 
-# Recommends of ubuntu-server that should not be included in cloud images by
-# default
-# unfortunately because we are currently installing ubuntu-server as a task,
-# all of the recursive dependencies are marked as manually installed and are
-# not subject to autoremoval.  There is discussion of us stopping the use of
-# tasks in livecd-rootfs but in the meantime, we have to also explicitly
-# remove the packages providing the services
-_xchroot "$rootd" env DEBIAN_FRONTEND=noninteractive \
-	apt-get -y autoremove --purge fwupd modemmanager udisks2
-
-if [ "${SUBPROJECT:-}" = minimized ]; then
-	# Remove various packages that we don't want in the minimized images.
-	# Some of these are tools that don't make sense by default
-	# non-interactively; some are libraries whose reverse-dependencies
-	# will have already been removed; open-vm-tools, it's a bug that this
-	# is in the common cloud seed because this should only be included
-	# in VMWare guest images, and we know none of the minimized images
-	# are targeted at VMWare.
-	_xchroot "${rootd}" env DEBIAN_FRONTEND=noninteractive \
-		apt-mark auto '^lib.*' '^python*' vim-runtime 2>/dev/null
-	# FIXME: iso-codes is a dep of software-properties and shouldn't be
-	_xchroot "${rootd}" env DEBIAN_FRONTEND=noninteractive \
-		apt-get -y autoremove --purge iso-codes xauth pastebinit \
-		plymouth open-vm-tools git git-man shared-mime-info vim vim-common \
-		console-setup ncurses-term tmux screen policykit-1 \
-		xdg-user-dirs less publicsuffix run-one apport-symptoms \
-		ubuntu-cloudimage-keyring file
-
-	_xchroot "${rootd}" apt clean
-fi
-
 #### END COMMON ARCH FUNCTIONS