diff --git a/debian/cloud-init.postinst b/debian/cloud-init.postinst
index f7eabf27fff..ab25da6bd72 100644
--- a/debian/cloud-init.postinst
+++ b/debian/cloud-init.postinst
@@ -7,81 +7,4 @@ set -e
 set -f # disable pathname expansion
 db_capb escape # to support carriage return / multi-line values
 
-fix_lp1889555() {
-    local oldver="$1" last_bad_ver="20.3-2-g371b392c-0ubuntu1"
-    dpkg --compare-versions "$oldver" le-nl "$last_bad_ver" || return 0
-
-    # if cloud-init's grub module did not run, then it did not break anything.
-    [ -f /var/lib/cloud/instance/sem/config_grub_dpkg ] || return 0
-
-    # Don't do anything unless we have grub
-    command -v grub-install > /dev/null || return 0
-
-    # Make sure that we are not chrooted.
-    [ "$(stat -c %d:%i /)" != "$(stat -c %d:%i /proc/1/root/.)" ] && return 0
-
-    # Check if we are in a container, i.e. LXC
-    if systemd-detect-virt --quiet --container || lxc-is-container 2>/dev/null; then
-        return 0
-    fi
-
-    # This bug only applies to NVMe devices
-    [ -e /dev/nvme0 ] || return 0
-
-    db_get grub-pc/install_devices && grub_cfg_dev=${RET} || return 0
-
-    # If the current setting is not the (potentially-incorrect) default we
-    # expect, this implies user intervention so leave things alone
-    [ "$grub_cfg_dev" = "/dev/sda" ] || return 0
-
-    correct_idev="$(python3 -c "import logging; from cloudinit.config.cc_grub_dpkg import fetch_idevs; print(fetch_idevs(logging.getLogger()))")" || return 0
-
-    # If correct_idev is the empty string, we failed to determine the correct
-    # install device; do nothing
-    [ -z "$correct_idev" ] && return 0
-
-    # If the correct_idev is already configured, do nothing
-    [ "$grub_cfg_dev" = "$correct_idev" ] && return 0
-
-    echo "Reconfiguring grub install device due to mismatch (LP: #1889555)"
-    echo "   grub should use $correct_idev but is configured for $grub_cfg_dev"
-    db_set grub-pc/install_devices "$correct_idev"
-    db_set grub-pc/install_devices_empty "false"
-}
-
-rename_hook_hotplug_udev_rule() {
-    local oldver="$1" last_bad_ver="24.3~1g6e4153b3-0ubuntu1"
-    dpkg --compare-versions "$oldver" le-nl "$last_bad_ver" || return 0
-    # Avoids LP: #1946003 see commit: b519d861aff8b44a0610c176cb34adcbe28df144
-    if [ -f /etc/udev/rules.d/10-cloud-init-hook-hotplug.rules ]; then
-        mv -f /etc/udev/rules.d/10-cloud-init-hook-hotplug.rules \
-            /etc/udev/rules.d/90-cloud-init-hook-hotplug.rules
-    fi
-}
-
-update_maas_spelling(){
-   local oldver="$1" last_bad_ver="24.3~1g6e4153b3-0ubuntu1"
-   dpkg --compare-versions "$oldver" le-nl "$last_bad_ver" || return 0
-   if db_get cloud-init/datasources; then
-      values="$RET"
-      if [ "${values#*MaaS}" != "${values}" ]; then
-         # if db had old MAAS spelling, fix it.
-         values=$(echo "$values" | sed 's,MaaS,MAAS,g')
-         db_set cloud-init/datasources "$values"
-      fi
-      cat > /etc/cloud/cloud.cfg.d/90_dpkg.cfg <<EOF
-# to update this file, run dpkg-reconfigure cloud-init
-datasource_list: [ $values ]
-EOF
-   fi
-}
-
-if [ "$1" = "configure" ]; then
-
-   update_maas_spelling "$2"
-   fix_lp1889555 "$2"
-   rename_hook_hotplug_udev_rule "$2"
-
-fi
-
 #DEBHELPER#
diff --git a/debian/cloud-init.postrm b/debian/cloud-init.postrm
index 4e20db1cabe..81888b172e3 100644
--- a/debian/cloud-init.postrm
+++ b/debian/cloud-init.postrm
@@ -5,10 +5,6 @@ set -e
 case "$1" in
    purge)
       rm -f /etc/cloud/cloud.cfg.d/90_dpkg.cfg
-      rm -f /etc/apt/apt.conf.d/90cloud-init-pipelining
-      ;;
-   remove)
-      rm -f /etc/cloud/cloud.cfg.d/90cloud-init-pipelining
       ;;
 esac
 
diff --git a/debian/cloud-init.preinst b/debian/cloud-init.preinst
index 6470d79f489..738c05d4021 100644
--- a/debian/cloud-init.preinst
+++ b/debian/cloud-init.preinst
@@ -4,7 +4,7 @@ set -e
 cleanup_oci_network_lp1956788() {
    # Remove vestigial /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
    # from Oracle now that datasource honors system cfg above datasource cfg.
-   local oldver="$1" last_bad_ver="24.3~1g6e4153b3-0ubuntu1"
+   local oldver="$1" last_bad_ver="23.2-0ubuntu0"
    dpkg --compare-versions "$oldver" le "$last_bad_ver" || return 0
    grep DataSourceOracle /var/lib/cloud/instance/datasource > /dev/null 2>&1 || return 0
    rm -f /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
diff --git a/debian/cloud-init.prerm b/debian/cloud-init.prerm
deleted file mode 100644
index 8954fa4d7c2..00000000000
--- a/debian/cloud-init.prerm
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/sh
-
-set -e
-rm -f /etc/cron.d/cloudinit-updates
-
-#DEBHELPER#